3x+40+4x-13+90=180

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Solution for 3x+40+4x-13+90=180 equation:


Simplifying
3x + 40 + 4x + -13 + 90 = 180

Reorder the terms:
40 + -13 + 90 + 3x + 4x = 180

Combine like terms: 40 + -13 = 27
27 + 90 + 3x + 4x = 180

Combine like terms: 27 + 90 = 117
117 + 3x + 4x = 180

Combine like terms: 3x + 4x = 7x
117 + 7x = 180

Solving
117 + 7x = 180

Solving for variable 'x'.

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

Add '-117' to each side of the equation.
117 + -117 + 7x = 180 + -117

Combine like terms: 117 + -117 = 0
0 + 7x = 180 + -117
7x = 180 + -117

Combine like terms: 180 + -117 = 63
7x = 63

Divide each side by '7'.
x = 9

Simplifying
x = 9

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