7x-(2x-3)=9x+12

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Solution for 7x-(2x-3)=9x+12 equation:


Simplifying
7x + -1(2x + -3) = 9x + 12

Reorder the terms:
7x + -1(-3 + 2x) = 9x + 12
7x + (-3 * -1 + 2x * -1) = 9x + 12
7x + (3 + -2x) = 9x + 12

Reorder the terms:
3 + 7x + -2x = 9x + 12

Combine like terms: 7x + -2x = 5x
3 + 5x = 9x + 12

Reorder the terms:
3 + 5x = 12 + 9x

Solving
3 + 5x = 12 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
3 + 5x + -9x = 12 + 9x + -9x

Combine like terms: 5x + -9x = -4x
3 + -4x = 12 + 9x + -9x

Combine like terms: 9x + -9x = 0
3 + -4x = 12 + 0
3 + -4x = 12

Add '-3' to each side of the equation.
3 + -3 + -4x = 12 + -3

Combine like terms: 3 + -3 = 0
0 + -4x = 12 + -3
-4x = 12 + -3

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

Divide each side by '-4'.
x = -2.25

Simplifying
x = -2.25

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