3x+4-9x=9-(x+18)-6

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Solution for 3x+4-9x=9-(x+18)-6 equation:


Simplifying
3x + 4 + -9x = 9 + -1(x + 18) + -6

Reorder the terms:
4 + 3x + -9x = 9 + -1(x + 18) + -6

Combine like terms: 3x + -9x = -6x
4 + -6x = 9 + -1(x + 18) + -6

Reorder the terms:
4 + -6x = 9 + -1(18 + x) + -6
4 + -6x = 9 + (18 * -1 + x * -1) + -6
4 + -6x = 9 + (-18 + -1x) + -6

Reorder the terms:
4 + -6x = 9 + -18 + -6 + -1x

Combine like terms: 9 + -18 = -9
4 + -6x = -9 + -6 + -1x

Combine like terms: -9 + -6 = -15
4 + -6x = -15 + -1x

Solving
4 + -6x = -15 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
4 + -6x + x = -15 + -1x + x

Combine like terms: -6x + x = -5x
4 + -5x = -15 + -1x + x

Combine like terms: -1x + x = 0
4 + -5x = -15 + 0
4 + -5x = -15

Add '-4' to each side of the equation.
4 + -4 + -5x = -15 + -4

Combine like terms: 4 + -4 = 0
0 + -5x = -15 + -4
-5x = -15 + -4

Combine like terms: -15 + -4 = -19
-5x = -19

Divide each side by '-5'.
x = 3.8

Simplifying
x = 3.8

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