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

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


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

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

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

Reorder the terms:
-9 + 4 + 9x + 4x = 12 + -2x

Combine like terms: -9 + 4 = -5
-5 + 9x + 4x = 12 + -2x

Combine like terms: 9x + 4x = 13x
-5 + 13x = 12 + -2x

Solving
-5 + 13x = 12 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-5 + 13x + 2x = 12 + -2x + 2x

Combine like terms: 13x + 2x = 15x
-5 + 15x = 12 + -2x + 2x

Combine like terms: -2x + 2x = 0
-5 + 15x = 12 + 0
-5 + 15x = 12

Add '5' to each side of the equation.
-5 + 5 + 15x = 12 + 5

Combine like terms: -5 + 5 = 0
0 + 15x = 12 + 5
15x = 12 + 5

Combine like terms: 12 + 5 = 17
15x = 17

Divide each side by '15'.
x = 1.133333333

Simplifying
x = 1.133333333

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