3x-40+7x-120=180

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Solution for 3x-40+7x-120=180 equation:


Simplifying
3x + -40 + 7x + -120 = 180

Reorder the terms:
-40 + -120 + 3x + 7x = 180

Combine like terms: -40 + -120 = -160
-160 + 3x + 7x = 180

Combine like terms: 3x + 7x = 10x
-160 + 10x = 180

Solving
-160 + 10x = 180

Solving for variable 'x'.

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

Add '160' to each side of the equation.
-160 + 160 + 10x = 180 + 160

Combine like terms: -160 + 160 = 0
0 + 10x = 180 + 160
10x = 180 + 160

Combine like terms: 180 + 160 = 340
10x = 340

Divide each side by '10'.
x = 34

Simplifying
x = 34

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