400+x=313

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Solution for 400+x=313 equation: 


Simplifying
400 + x = 313

Solving
400 + x = 313

Solving for variable 'x'.

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

Add '-400' to each side of the equation.
400 + -400 + x = 313 + -400

Combine like terms: 400 + -400 = 0
0 + x = 313 + -400
x = 313 + -400

Combine like terms: 313 + -400 = -87
x = -87

Simplifying
x = -87

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