-28=x-7

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Solution for -28=x-7 equation:


Simplifying
-28 = x + -7

Reorder the terms:
-28 = -7 + x

Solving
-28 = -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.
-28 + -1x = -7 + x + -1x

Combine like terms: x + -1x = 0
-28 + -1x = -7 + 0
-28 + -1x = -7

Add '28' to each side of the equation.
-28 + 28 + -1x = -7 + 28

Combine like terms: -28 + 28 = 0
0 + -1x = -7 + 28
-1x = -7 + 28

Combine like terms: -7 + 28 = 21
-1x = 21

Divide each side by '-1'.
x = -21

Simplifying
x = -21

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