4(x+12)-9(x-21)=-12-2(x+15)

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Solution for 4(x+12)-9(x-21)=-12-2(x+15) equation:


Simplifying
4(x + 12) + -9(x + -21) = -12 + -2(x + 15)

Reorder the terms:
4(12 + x) + -9(x + -21) = -12 + -2(x + 15)
(12 * 4 + x * 4) + -9(x + -21) = -12 + -2(x + 15)
(48 + 4x) + -9(x + -21) = -12 + -2(x + 15)

Reorder the terms:
48 + 4x + -9(-21 + x) = -12 + -2(x + 15)
48 + 4x + (-21 * -9 + x * -9) = -12 + -2(x + 15)
48 + 4x + (189 + -9x) = -12 + -2(x + 15)

Reorder the terms:
48 + 189 + 4x + -9x = -12 + -2(x + 15)

Combine like terms: 48 + 189 = 237
237 + 4x + -9x = -12 + -2(x + 15)

Combine like terms: 4x + -9x = -5x
237 + -5x = -12 + -2(x + 15)

Reorder the terms:
237 + -5x = -12 + -2(15 + x)
237 + -5x = -12 + (15 * -2 + x * -2)
237 + -5x = -12 + (-30 + -2x)

Combine like terms: -12 + -30 = -42
237 + -5x = -42 + -2x

Solving
237 + -5x = -42 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
237 + -5x + 2x = -42 + -2x + 2x

Combine like terms: -5x + 2x = -3x
237 + -3x = -42 + -2x + 2x

Combine like terms: -2x + 2x = 0
237 + -3x = -42 + 0
237 + -3x = -42

Add '-237' to each side of the equation.
237 + -237 + -3x = -42 + -237

Combine like terms: 237 + -237 = 0
0 + -3x = -42 + -237
-3x = -42 + -237

Combine like terms: -42 + -237 = -279
-3x = -279

Divide each side by '-3'.
x = 93

Simplifying
x = 93

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