42=-2(-2x-7)

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Solution for 42=-2(-2x-7) equation:


Simplifying
42 = -2(-2x + -7)

Reorder the terms:
42 = -2(-7 + -2x)
42 = (-7 * -2 + -2x * -2)
42 = (14 + 4x)

Solving
42 = 14 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
42 + -4x = 14 + 4x + -4x

Combine like terms: 4x + -4x = 0
42 + -4x = 14 + 0
42 + -4x = 14

Add '-42' to each side of the equation.
42 + -42 + -4x = 14 + -42

Combine like terms: 42 + -42 = 0
0 + -4x = 14 + -42
-4x = 14 + -42

Combine like terms: 14 + -42 = -28
-4x = -28

Divide each side by '-4'.
x = 7

Simplifying
x = 7

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