-90=45+x

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Solution for -90=45+x equation:


Simplifying
-90 = 45 + x

Solving
-90 = 45 + 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.
-90 + -1x = 45 + x + -1x

Combine like terms: x + -1x = 0
-90 + -1x = 45 + 0
-90 + -1x = 45

Add '90' to each side of the equation.
-90 + 90 + -1x = 45 + 90

Combine like terms: -90 + 90 = 0
0 + -1x = 45 + 90
-1x = 45 + 90

Combine like terms: 45 + 90 = 135
-1x = 135

Divide each side by '-1'.
x = -135

Simplifying
x = -135

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