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    I'm doing some maths homework and because my teacher is just one of this who talks really quickly and moves too fast in lessons, I have no idea what I'm doing and would really,really appreciate it,if somebody could help me.Name:  Photo on 06-11-2016 at 09.49.jpg
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Size:  45.5 KB I know the photo is backward but this is the best i could do.
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    (Original post by jesst15)
    I'm doing some maths homework and because my teacher is just one of this who talks really quickly and moves too fast in lessons, I have no idea what I'm doing and would really,really appreciate it,if somebody could help me.Name:  Photo on 06-11-2016 at 09.49.jpg
Views: 44
Size:  45.5 KB I know the photo is backward but this is the best i could do.
    Simultaneous equations are such that If there are solutions then they are a fixed set of numbers.

    So in your first one for example if you rearrange to make y the subject of one, you can substitute it into the other because [b]in both equations the value of X and y are the same and the goal of solving both is to find these common values of X and y.
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    (Original post by jesst15)
    I'm doing some maths homework and because my teacher is just one of this who talks really quickly and moves too fast in lessons, I have no idea what I'm doing and would really,really appreciate it,if somebody could help me.Name:  Photo on 06-11-2016 at 09.49.jpg
Views: 44
Size:  45.5 KB I know the photo is backward but this is the best i could do.
    Learn the rule for this.
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    (Original post by jesst15)
    I'm doing some maths homework and because my teacher is just one......
    Get Y or X the subject of the equation (Y= or X=), also dont forget to put the answer of e.g. X back into equation to get Y. so for example for first equation,
    2x-y=1
    -y=1-2x
    y=2x-1
    Then put this into the other equation:
    2x+(2x-1)=10
    Go from here

    Or with the one bottom left minus (and plus on top left) them to cancel out
    (12x+20y)-(12x+9y)=28-6
    11y=22
    Go from here

    Bottom Right
    Change Y to 2x in top equation
    x(y)=17
    x(2x) =18
    Go from here

    Hope this helps you get started
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    http://www.mathsgenie.co.uk/simultaneous.html
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    (Original post by jesst15)
    I'm doing some maths homework and because my teacher is just one of this who talks really quickly and moves too fast in lessons, I have no idea what I'm doing and would really,really appreciate it,if somebody could help me.Name:  Photo on 06-11-2016 at 09.49.jpg
Views: 44
Size:  45.5 KB I know the photo is backward but this is the best i could do.
    It would be better for you to search this on YouTube so you will get an explanation and instructions.
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    (Original post by DivingHaywood)
    Get Y or X the subject of the equation (Y= or X=), also dont forget to put the answer of e.g. X back into equation to get Y. so for example for first equation,
    2x-y=1
    -y=1-2x
    y=2x-1
    Then put this into the other equation:
    2x+(2x-1)=10
    Go from here

    Or with the one bottom left minus (and plus on top left) them to cancel out
    (12x+20y)-(12x+9y)=28-6
    11y=22
    Go from here

    Bottom Right
    Change Y to 2x in top equation
    x(y)=17
    x(2x) =18
    Go from here

    Hope this helps you get started

    Yes it did,thank you so much!!!
 
 
 
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