-4(x-9)=42

Solution for -4(x-9)=42 equation:

Simplifying
-4(x + -9) = 42

Reorder the terms:
-4(-9 + x) = 42
(-9 * -4 + x * -4) = 42
(36 + -4x) = 42

Solving
36 + -4x = 42

Solving for variable 'x'.

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

Add '-36' to each side of the equation.
36 + -36 + -4x = 42 + -36

Combine like terms: 36 + -36 = 0
0 + -4x = 42 + -36
-4x = 42 + -36

Combine like terms: 42 + -36 = 6
-4x = 6

Divide each side by '-4'.
x = -1.5

Simplifying
x = -1.5