400-s=313

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Solution for 400-s=313 equation: 


Simplifying
400 + -1s = 313

Solving
400 + -1s = 313

Solving for variable 's'.

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

Add '-400' to each side of the equation.
400 + -400 + -1s = 313 + -400

Combine like terms: 400 + -400 = 0
0 + -1s = 313 + -400
-1s = 313 + -400

Combine like terms: 313 + -400 = -87
-1s = -87

Divide each side by '-1'.
s = 87

Simplifying
s = 87

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