Question

1. $-(7 - 4x) = 9$

Explanation:

Step1: Distribute the negative sign

$12 - 7 + 4x = 9$

Step2: Simplify constants on left

$5 + 4x = 9$

Step3: Subtract 5 from both sides

$4x = 9 - 5$
$4x = 4$

Step4: Divide by 4 to solve for x

$x = \frac{4}{4}$

Answer:

$x = 1$