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Stuck on maths problem

Stuck on maths problem

Ofl1989

F(x)=2x+c G(x)=cx+7 Fg(x)=4x+d C and d are constants. Work out the value of d.?

(edited 5 years ago)

Reply 1

ThomH97

You need to work out F(G(x)). i.e. find G(x) first, then substitute that expression into F(x).

You may find it easier to write out F(y) and then replace 'y' with G(x).

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