9x-12-(2x+3)-(3x-4)=9

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Solution for 9x-12-(2x+3)-(3x-4)=9 equation:


Simplifying
9x + -12 + -1(2x + 3) + -1(3x + -4) = 9

Reorder the terms:
9x + -12 + -1(3 + 2x) + -1(3x + -4) = 9
9x + -12 + (3 * -1 + 2x * -1) + -1(3x + -4) = 9
9x + -12 + (-3 + -2x) + -1(3x + -4) = 9

Reorder the terms:
9x + -12 + -3 + -2x + -1(-4 + 3x) = 9
9x + -12 + -3 + -2x + (-4 * -1 + 3x * -1) = 9
9x + -12 + -3 + -2x + (4 + -3x) = 9

Reorder the terms:
-12 + -3 + 4 + 9x + -2x + -3x = 9

Combine like terms: -12 + -3 = -15
-15 + 4 + 9x + -2x + -3x = 9

Combine like terms: -15 + 4 = -11
-11 + 9x + -2x + -3x = 9

Combine like terms: 9x + -2x = 7x
-11 + 7x + -3x = 9

Combine like terms: 7x + -3x = 4x
-11 + 4x = 9

Solving
-11 + 4x = 9

Solving for variable 'x'.

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

Add '11' to each side of the equation.
-11 + 11 + 4x = 9 + 11

Combine like terms: -11 + 11 = 0
0 + 4x = 9 + 11
4x = 9 + 11

Combine like terms: 9 + 11 = 20
4x = 20

Divide each side by '4'.
x = 5

Simplifying
x = 5

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