x+39=4x+18

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Solution for x+39=4x+18 equation:


Simplifying
x + 39 = 4x + 18

Reorder the terms:
39 + x = 4x + 18

Reorder the terms:
39 + x = 18 + 4x

Solving
39 + x = 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.
39 + x + -4x = 18 + 4x + -4x

Combine like terms: x + -4x = -3x
39 + -3x = 18 + 4x + -4x

Combine like terms: 4x + -4x = 0
39 + -3x = 18 + 0
39 + -3x = 18

Add '-39' to each side of the equation.
39 + -39 + -3x = 18 + -39

Combine like terms: 39 + -39 = 0
0 + -3x = 18 + -39
-3x = 18 + -39

Combine like terms: 18 + -39 = -21
-3x = -21

Divide each side by '-3'.
x = 7

Simplifying
x = 7

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