3(x-4)+15=12-4(x-3)

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Solution for 3(x-4)+15=12-4(x-3) equation:


Simplifying
3(x + -4) + 15 = 12 + -4(x + -3)

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

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

Combine like terms: -12 + 15 = 3
3 + 3x = 12 + -4(x + -3)

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

Combine like terms: 12 + 12 = 24
3 + 3x = 24 + -4x

Solving
3 + 3x = 24 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
3 + 3x + 4x = 24 + -4x + 4x

Combine like terms: 3x + 4x = 7x
3 + 7x = 24 + -4x + 4x

Combine like terms: -4x + 4x = 0
3 + 7x = 24 + 0
3 + 7x = 24

Add '-3' to each side of the equation.
3 + -3 + 7x = 24 + -3

Combine like terms: 3 + -3 = 0
0 + 7x = 24 + -3
7x = 24 + -3

Combine like terms: 24 + -3 = 21
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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