Question

$- 7x - 4x = - 12$
$- 8x + 7x = 5$

Answer 1

-11x=12

x=-11/12

and second solution

-x=5

x=-5

hope it will help you.

Answer 2

Answer:

$(1) - 7x - 4x = ( - 12) \\ ( - 11x) = (- 12) \\ x = \frac{ - 12}{ - 11} = \frac{12}{11}$

$(2) - 8x + 7x = 5 \\ - x = 5 \\ x = \frac{5}{ - 1} = ( - 5)$

I hope it is helpful.

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