3x+9=-6x+99

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Solution for 3x+9=-6x+99 equation:


Simplifying
3x + 9 = -6x + 99

Reorder the terms:
9 + 3x = -6x + 99

Reorder the terms:
9 + 3x = 99 + -6x

Solving
9 + 3x = 99 + -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
9 + 3x + 6x = 99 + -6x + 6x

Combine like terms: 3x + 6x = 9x
9 + 9x = 99 + -6x + 6x

Combine like terms: -6x + 6x = 0
9 + 9x = 99 + 0
9 + 9x = 99

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 = 90
9x = 90

Divide each side by '9'.
x = 10

Simplifying
x = 10

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