4x+30=12x-15

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Solution for 4x+30=12x-15 equation:


Simplifying
4x + 30 = 12x + -15

Reorder the terms:
30 + 4x = 12x + -15

Reorder the terms:
30 + 4x = -15 + 12x

Solving
30 + 4x = -15 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
30 + 4x + -12x = -15 + 12x + -12x

Combine like terms: 4x + -12x = -8x
30 + -8x = -15 + 12x + -12x

Combine like terms: 12x + -12x = 0
30 + -8x = -15 + 0
30 + -8x = -15

Add '-30' to each side of the equation.
30 + -30 + -8x = -15 + -30

Combine like terms: 30 + -30 = 0
0 + -8x = -15 + -30
-8x = -15 + -30

Combine like terms: -15 + -30 = -45
-8x = -45

Divide each side by '-8'.
x = 5.625

Simplifying
x = 5.625

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