(x+20)-90=(70-x)

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Solution for (x+20)-90=(70-x) equation:


Simplifying
(x + 20) + -90 = (70 + -1x)

Reorder the terms:
(20 + x) + -90 = (70 + -1x)

Remove parenthesis around (20 + x)
20 + x + -90 = (70 + -1x)

Reorder the terms:
20 + -90 + x = (70 + -1x)

Combine like terms: 20 + -90 = -70
-70 + x = (70 + -1x)

Remove parenthesis around (70 + -1x)
-70 + x = 70 + -1x

Solving
-70 + x = 70 + -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.
-70 + x + x = 70 + -1x + x

Combine like terms: x + x = 2x
-70 + 2x = 70 + -1x + x

Combine like terms: -1x + x = 0
-70 + 2x = 70 + 0
-70 + 2x = 70

Add '70' to each side of the equation.
-70 + 70 + 2x = 70 + 70

Combine like terms: -70 + 70 = 0
0 + 2x = 70 + 70
2x = 70 + 70

Combine like terms: 70 + 70 = 140
2x = 140

Divide each side by '2'.
x = 70

Simplifying
x = 70

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