117+7x=138+4x

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Solution for 117+7x=138+4x equation:


Simplifying
117 + 7x = 138 + 4x

Solving
117 + 7x = 138 + 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.
117 + 7x + -4x = 138 + 4x + -4x

Combine like terms: 7x + -4x = 3x
117 + 3x = 138 + 4x + -4x

Combine like terms: 4x + -4x = 0
117 + 3x = 138 + 0
117 + 3x = 138

Add '-117' to each side of the equation.
117 + -117 + 3x = 138 + -117

Combine like terms: 117 + -117 = 0
0 + 3x = 138 + -117
3x = 138 + -117

Combine like terms: 138 + -117 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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