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

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


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

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

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

Combine like terms: -12 + -9 = -21
-21 + -4x = 3x + 12

Reorder the terms:
-21 + -4x = 12 + 3x

Solving
-21 + -4x = 12 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-21 + -4x + -3x = 12 + 3x + -3x

Combine like terms: -4x + -3x = -7x
-21 + -7x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
-21 + -7x = 12 + 0
-21 + -7x = 12

Add '21' to each side of the equation.
-21 + 21 + -7x = 12 + 21

Combine like terms: -21 + 21 = 0
0 + -7x = 12 + 21
-7x = 12 + 21

Combine like terms: 12 + 21 = 33
-7x = 33

Divide each side by '-7'.
x = -4.714285714

Simplifying
x = -4.714285714

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