7=20+x

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Solution for 7=20+x equation:


Simplifying
7 = 20 + x

Solving
7 = 20 + 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.
7 + -1x = 20 + x + -1x

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

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

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

Combine like terms: 20 + -7 = 13
-1x = 13

Divide each side by '-1'.
x = -13

Simplifying
x = -13

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