Original post by satsun
I’m doing question 10 in the Edexcel assessment materials. I’ve got two equations:
18 = A - B
44 = A - Be^-0.7
I’m having trouble solving them. I know I need to do simultaneous equations but I can only get to:
26 = -Be^-0.7 + B
Do I need to take lns?
18 = A - B
44 = A - Be^-0.7
I’m having trouble solving them. I know I need to do simultaneous equations but I can only get to:
26 = -Be^-0.7 + B
Do I need to take lns?
No, there's no need to take logs - it won't help with the right hand side.
Just factorise the RHS.
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