Question

1. -4(x + 2) - 3x = 20

Explanation:

Step1: Expand the expression

$-4(x + 2)-3x=20$ becomes $-4x-8 - 3x=20$.

Step2: Combine like - terms

Combining $-4x$ and $-3x$, we get $(-4x-3x)-8 = 20$, so $-7x-8 = 20$.

Step3: Isolate the term with x

Add 8 to both sides: $-7x-8 + 8=20 + 8$, which simplifies to $-7x=28$.

Step4: Solve for x

Divide both sides by - 7: $\frac{-7x}{-7}=\frac{28}{-7}$, so $x=-4$.

Answer:

$x = - 4$