-7=20-x

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Solution for -7=20-x equation:


Simplifying
-7 = 20 + -1x

Solving
-7 = 20 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-7 + x = 20 + -1x + x

Combine like terms: -1x + x = 0
-7 + x = 20 + 0
-7 + x = 20

Add '7' to each side of the equation.
-7 + 7 + x = 20 + 7

Combine like terms: -7 + 7 = 0
0 + x = 20 + 7
x = 20 + 7

Combine like terms: 20 + 7 = 27
x = 27

Simplifying
x = 27

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