Question

If EG=67, then EF=? There is a picture below

Answer 1

EF is equal to 32 since
when you combine 3x+7 and 5x-4 you get that x is equal to 8. Plug in 8 to to 3x-7 and you get 3-.

Answer 2

If EG=67 we have (3x+7)+(5x-4)=67
let's simplify
$67 = (3x + 7) + (5x - 4) \\ 67 = 8x + 3 \\ 64 = 8x \\ \frac{64}{8} = x \\ 8 = x$
now we know x is 8 we can use this to find EF
since EF=3x+7
$3(8) + 7 = 24 + 7 = 31$
so we have EF is 31!
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