2(x+3)-4(x+3)=9

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Solution for 2(x+3)-4(x+3)=9 equation:


Simplifying
2(x + 3) + -4(x + 3) = 9

Reorder the terms:
2(3 + x) + -4(x + 3) = 9
(3 * 2 + x * 2) + -4(x + 3) = 9
(6 + 2x) + -4(x + 3) = 9

Reorder the terms:
6 + 2x + -4(3 + x) = 9
6 + 2x + (3 * -4 + x * -4) = 9
6 + 2x + (-12 + -4x) = 9

Reorder the terms:
6 + -12 + 2x + -4x = 9

Combine like terms: 6 + -12 = -6
-6 + 2x + -4x = 9

Combine like terms: 2x + -4x = -2x
-6 + -2x = 9

Solving
-6 + -2x = 9

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + -2x = 9 + 6

Combine like terms: -6 + 6 = 0
0 + -2x = 9 + 6
-2x = 9 + 6

Combine like terms: 9 + 6 = 15
-2x = 15

Divide each side by '-2'.
x = -7.5

Simplifying
x = -7.5

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