42=18-4x

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Solution for 42=18-4x equation:


Simplifying
42 = 18 + -4x

Solving
42 = 18 + -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 = 18 + -4x + 4x

Combine like terms: -4x + 4x = 0
42 + 4x = 18 + 0
42 + 4x = 18

Add '-42' to each side of the equation.
42 + -42 + 4x = 18 + -42

Combine like terms: 42 + -42 = 0
0 + 4x = 18 + -42
4x = 18 + -42

Combine like terms: 18 + -42 = -24
4x = -24

Divide each side by '4'.
x = -6

Simplifying
x = -6

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