42=-8x

Solution for 42=-8x equation:

Simplifying
42 = -8x

Solving
42 = -8x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '8x' to each side of the equation.
42 + 8x = -8x + 8x

Combine like terms: -8x + 8x = 0
42 + 8x = 0

Add '-42' to each side of the equation.
42 + -42 + 8x = 0 + -42

Combine like terms: 42 + -42 = 0
0 + 8x = 0 + -42
8x = 0 + -42

Combine like terms: 0 + -42 = -42
8x = -42

Divide each side by '8'.
x = -5.25

Simplifying
x = -5.25