12(x+1)-(-9x-3)=x-9+3

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Solution for 12(x+1)-(-9x-3)=x-9+3 equation:


Simplifying
12(x + 1) + -1(-9x + -3) = x + -9 + 3

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

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

Reorder the terms:
12 + 3 + 12x + 9x = x + -9 + 3

Combine like terms: 12 + 3 = 15
15 + 12x + 9x = x + -9 + 3

Combine like terms: 12x + 9x = 21x
15 + 21x = x + -9 + 3

Reorder the terms:
15 + 21x = -9 + 3 + x

Combine like terms: -9 + 3 = -6
15 + 21x = -6 + x

Solving
15 + 21x = -6 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
15 + 21x + -1x = -6 + x + -1x

Combine like terms: 21x + -1x = 20x
15 + 20x = -6 + x + -1x

Combine like terms: x + -1x = 0
15 + 20x = -6 + 0
15 + 20x = -6

Add '-15' to each side of the equation.
15 + -15 + 20x = -6 + -15

Combine like terms: 15 + -15 = 0
0 + 20x = -6 + -15
20x = -6 + -15

Combine like terms: -6 + -15 = -21
20x = -21

Divide each side by '20'.
x = -1.05

Simplifying
x = -1.05

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