9(x+1)+4(x-2)+7x+(-12x)=

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Solution for 9(x+1)+4(x-2)+7x+(-12x)= equation: 


Simplifying
9(x + 1) + 4(x + -2) + 7x + (-12x) = 0

Reorder the terms:
9(1 + x) + 4(x + -2) + 7x + (-12x) = 0
(1 * 9 + x * 9) + 4(x + -2) + 7x + (-12x) = 0
(9 + 9x) + 4(x + -2) + 7x + (-12x) = 0

Reorder the terms:
9 + 9x + 4(-2 + x) + 7x + (-12x) = 0
9 + 9x + (-2 * 4 + x * 4) + 7x + (-12x) = 0
9 + 9x + (-8 + 4x) + 7x + (-12x) = 0

Reorder the terms:
9 + -8 + 9x + 4x + 7x + (-12x) = 0

Combine like terms: 9 + -8 = 1
1 + 9x + 4x + 7x + (-12x) = 0

Combine like terms: 9x + 4x = 13x
1 + 13x + 7x + (-12x) = 0

Combine like terms: 13x + 7x = 20x
1 + 20x + (-12x) = 0

Combine like terms: 20x + (-12x) = 8x
1 + 8x = 0

Solving
1 + 8x = 0

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 8x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 8x = 0 + -1
8x = 0 + -1

Combine like terms: 0 + -1 = -1
8x = -1

Divide each side by '8'.
x = -0.125

Simplifying
x = -0.125

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