3(-4+9)-3x=4(x+5)-12x

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Solution for 3(-4+9)-3x=4(x+5)-12x equation:


Simplifying
3(-4 + 9) + -3x = 4(x + 5) + -12x

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

Multiply 3 * 5
15 + -3x = 4(x + 5) + -12x

Reorder the terms:
15 + -3x = 4(5 + x) + -12x
15 + -3x = (5 * 4 + x * 4) + -12x
15 + -3x = (20 + 4x) + -12x

Combine like terms: 4x + -12x = -8x
15 + -3x = 20 + -8x

Solving
15 + -3x = 20 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
15 + -3x + 8x = 20 + -8x + 8x

Combine like terms: -3x + 8x = 5x
15 + 5x = 20 + -8x + 8x

Combine like terms: -8x + 8x = 0
15 + 5x = 20 + 0
15 + 5x = 20

Add '-15' to each side of the equation.
15 + -15 + 5x = 20 + -15

Combine like terms: 15 + -15 = 0
0 + 5x = 20 + -15
5x = 20 + -15

Combine like terms: 20 + -15 = 5
5x = 5

Divide each side by '5'.
x = 1

Simplifying
x = 1

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