3x+15=12x+20

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Solution for 3x+15=12x+20 equation:


Simplifying
3x + 15 = 12x + 20

Reorder the terms:
15 + 3x = 12x + 20

Reorder the terms:
15 + 3x = 20 + 12x

Solving
15 + 3x = 20 + 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.
15 + 3x + -12x = 20 + 12x + -12x

Combine like terms: 3x + -12x = -9x
15 + -9x = 20 + 12x + -12x

Combine like terms: 12x + -12x = 0
15 + -9x = 20 + 0
15 + -9x = 20

Add '-15' to each side of the equation.
15 + -15 + -9x = 20 + -15

Combine like terms: 15 + -15 = 0
0 + -9x = 20 + -15
-9x = 20 + -15

Combine like terms: 20 + -15 = 5
-9x = 5

Divide each side by '-9'.
x = -0.5555555556

Simplifying
x = -0.5555555556

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