x+4.5x-9+x+2.5x=99

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Solution for x+4.5x-9+x+2.5x=99 equation:


Simplifying
x + 4.5x + -9 + x + 2.5x = 99

Reorder the terms:
-9 + x + 4.5x + x + 2.5x = 99

Combine like terms: x + 4.5x = 5.5x
-9 + 5.5x + x + 2.5x = 99

Combine like terms: 5.5x + x = 6.5x
-9 + 6.5x + 2.5x = 99

Combine like terms: 6.5x + 2.5x = 9x
-9 + 9x = 99

Solving
-9 + 9x = 99

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 9x = 99 + 9

Combine like terms: -9 + 9 = 0
0 + 9x = 99 + 9
9x = 99 + 9

Combine like terms: 99 + 9 = 108
9x = 108

Divide each side by '9'.
x = 12

Simplifying
x = 12

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