x+120+x+120+40=920

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Solution for x+120+x+120+40=920 equation:


Simplifying
x + 120 + x + 120 + 40 = 920

Reorder the terms:
120 + 120 + 40 + x + x = 920

Combine like terms: 120 + 120 = 240
240 + 40 + x + x = 920

Combine like terms: 240 + 40 = 280
280 + x + x = 920

Combine like terms: x + x = 2x
280 + 2x = 920

Solving
280 + 2x = 920

Solving for variable 'x'.

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

Add '-280' to each side of the equation.
280 + -280 + 2x = 920 + -280

Combine like terms: 280 + -280 = 0
0 + 2x = 920 + -280
2x = 920 + -280

Combine like terms: 920 + -280 = 640
2x = 640

Divide each side by '2'.
x = 320

Simplifying
x = 320

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