3=S-7

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Solution for 3=S-7 equation: 


Simplifying
3 = S + -7

Reorder the terms:
3 = -7 + S

Solving
3 = -7 + S

Solving for variable 'S'.

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

Add '-1S' to each side of the equation.
3 + -1S = -7 + S + -1S

Combine like terms: S + -1S = 0
3 + -1S = -7 + 0
3 + -1S = -7

Add '-3' to each side of the equation.
3 + -3 + -1S = -7 + -3

Combine like terms: 3 + -3 = 0
0 + -1S = -7 + -3
-1S = -7 + -3

Combine like terms: -7 + -3 = -10
-1S = -10

Divide each side by '-1'.
S = 10

Simplifying
S = 10

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