500-x=700+x

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Solution for 500-x=700+x equation:


Simplifying
500 + -1x = 700 + x

Solving
500 + -1x = 700 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
500 + -1x + -1x = 700 + x + -1x

Combine like terms: -1x + -1x = -2x
500 + -2x = 700 + x + -1x

Combine like terms: x + -1x = 0
500 + -2x = 700 + 0
500 + -2x = 700

Add '-500' to each side of the equation.
500 + -500 + -2x = 700 + -500

Combine like terms: 500 + -500 = 0
0 + -2x = 700 + -500
-2x = 700 + -500

Combine like terms: 700 + -500 = 200
-2x = 200

Divide each side by '-2'.
x = -100

Simplifying
x = -100

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