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

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


Simplifying
0 = 12(x + 4) + -1(9x + 3)

Reorder the terms:
0 = 12(4 + x) + -1(9x + 3)
0 = (4 * 12 + x * 12) + -1(9x + 3)
0 = (48 + 12x) + -1(9x + 3)

Reorder the terms:
0 = 48 + 12x + -1(3 + 9x)
0 = 48 + 12x + (3 * -1 + 9x * -1)
0 = 48 + 12x + (-3 + -9x)

Reorder the terms:
0 = 48 + -3 + 12x + -9x

Combine like terms: 48 + -3 = 45
0 = 45 + 12x + -9x

Combine like terms: 12x + -9x = 3x
0 = 45 + 3x

Solving
0 = 45 + 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.
0 + -3x = 45 + 3x + -3x
Remove the zero:
-3x = 45 + 3x + -3x

Combine like terms: 3x + -3x = 0
-3x = 45 + 0
-3x = 45

Divide each side by '-3'.
x = -15

Simplifying
x = -15

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