-81-2x=-9x+45

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Solution for -81-2x=-9x+45 equation:


Simplifying
-81 + -2x = -9x + 45

Reorder the terms:
-81 + -2x = 45 + -9x

Solving
-81 + -2x = 45 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
-81 + -2x + 9x = 45 + -9x + 9x

Combine like terms: -2x + 9x = 7x
-81 + 7x = 45 + -9x + 9x

Combine like terms: -9x + 9x = 0
-81 + 7x = 45 + 0
-81 + 7x = 45

Add '81' to each side of the equation.
-81 + 81 + 7x = 45 + 81

Combine like terms: -81 + 81 = 0
0 + 7x = 45 + 81
7x = 45 + 81

Combine like terms: 45 + 81 = 126
7x = 126

Divide each side by '7'.
x = 18

Simplifying
x = 18

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