3x+18-42=4x-4

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Solution for 3x+18-42=4x-4 equation:


Simplifying
3x + 18 + -42 = 4x + -4

Reorder the terms:
18 + -42 + 3x = 4x + -4

Combine like terms: 18 + -42 = -24
-24 + 3x = 4x + -4

Reorder the terms:
-24 + 3x = -4 + 4x

Solving
-24 + 3x = -4 + 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.
-24 + 3x + -4x = -4 + 4x + -4x

Combine like terms: 3x + -4x = -1x
-24 + -1x = -4 + 4x + -4x

Combine like terms: 4x + -4x = 0
-24 + -1x = -4 + 0
-24 + -1x = -4

Add '24' to each side of the equation.
-24 + 24 + -1x = -4 + 24

Combine like terms: -24 + 24 = 0
0 + -1x = -4 + 24
-1x = -4 + 24

Combine like terms: -4 + 24 = 20
-1x = 20

Divide each side by '-1'.
x = -20

Simplifying
x = -20

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