-3=x+-7

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Solution for -3=x+-7 equation:


Simplifying
-3 = x + -7

Reorder the terms:
-3 = -7 + x

Solving
-3 = -7 + 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.
-3 + -1x = -7 + x + -1x

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

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

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

Combine like terms: -7 + 3 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4

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