2x+9=9x+90

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Solution for 2x+9=9x+90 equation:


Simplifying
2x + 9 = 9x + 90

Reorder the terms:
9 + 2x = 9x + 90

Reorder the terms:
9 + 2x = 90 + 9x

Solving
9 + 2x = 90 + 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.
9 + 2x + -9x = 90 + 9x + -9x

Combine like terms: 2x + -9x = -7x
9 + -7x = 90 + 9x + -9x

Combine like terms: 9x + -9x = 0
9 + -7x = 90 + 0
9 + -7x = 90

Add '-9' to each side of the equation.
9 + -9 + -7x = 90 + -9

Combine like terms: 9 + -9 = 0
0 + -7x = 90 + -9
-7x = 90 + -9

Combine like terms: 90 + -9 = 81
-7x = 81

Divide each side by '-7'.
x = -11.57142857

Simplifying
x = -11.57142857

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