0.12x+15=0.3x-21

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Solution for 0.12x+15=0.3x-21 equation: 


Simplifying
0.12x + 15 = 0.3x + -21

Reorder the terms:
15 + 0.12x = 0.3x + -21

Reorder the terms:
15 + 0.12x = -21 + 0.3x

Solving
15 + 0.12x = -21 + 0.3x

Solving for variable 'x'.

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

Add '-0.3x' to each side of the equation.
15 + 0.12x + -0.3x = -21 + 0.3x + -0.3x

Combine like terms: 0.12x + -0.3x = -0.18x
15 + -0.18x = -21 + 0.3x + -0.3x

Combine like terms: 0.3x + -0.3x = 0.0
15 + -0.18x = -21 + 0.0
15 + -0.18x = -21

Add '-15' to each side of the equation.
15 + -15 + -0.18x = -21 + -15

Combine like terms: 15 + -15 = 0
0 + -0.18x = -21 + -15
-0.18x = -21 + -15

Combine like terms: -21 + -15 = -36
-0.18x = -36

Divide each side by '-0.18'.
x = 200

Simplifying
x = 200

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