100+80=250+70-x

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Solution for 100+80=250+70-x equation:


Simplifying
100 + 80 = 250 + 70 + -1x

Combine like terms: 100 + 80 = 180
180 = 250 + 70 + -1x

Combine like terms: 250 + 70 = 320
180 = 320 + -1x

Solving
180 = 320 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
180 + x = 320 + -1x + x

Combine like terms: -1x + x = 0
180 + x = 320 + 0
180 + x = 320

Add '-180' to each side of the equation.
180 + -180 + x = 320 + -180

Combine like terms: 180 + -180 = 0
0 + x = 320 + -180
x = 320 + -180

Combine like terms: 320 + -180 = 140
x = 140

Simplifying
x = 140

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