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

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


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

Reorder the terms:
4(3 + x) + -1(x + -6) = 9
(3 * 4 + x * 4) + -1(x + -6) = 9
(12 + 4x) + -1(x + -6) = 9

Reorder the terms:
12 + 4x + -1(-6 + x) = 9
12 + 4x + (-6 * -1 + x * -1) = 9
12 + 4x + (6 + -1x) = 9

Reorder the terms:
12 + 6 + 4x + -1x = 9

Combine like terms: 12 + 6 = 18
18 + 4x + -1x = 9

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

Solving
18 + 3x = 9

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 3x = 9 + -18

Combine like terms: 18 + -18 = 0
0 + 3x = 9 + -18
3x = 9 + -18

Combine like terms: 9 + -18 = -9
3x = -9

Divide each side by '3'.
x = -3

Simplifying
x = -3

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