.3(12x-15)=3x+9

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Solution for .3(12x-15)=3x+9 equation:


Simplifying
0.3(12x + -15) = 3x + 9

Reorder the terms:
0.3(-15 + 12x) = 3x + 9
(-15 * 0.3 + 12x * 0.3) = 3x + 9
(-4.5 + 3.6x) = 3x + 9

Reorder the terms:
-4.5 + 3.6x = 9 + 3x

Solving
-4.5 + 3.6x = 9 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-4.5 + 3.6x + -3x = 9 + 3x + -3x

Combine like terms: 3.6x + -3x = 0.6x
-4.5 + 0.6x = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
-4.5 + 0.6x = 9 + 0
-4.5 + 0.6x = 9

Add '4.5' to each side of the equation.
-4.5 + 4.5 + 0.6x = 9 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + 0.6x = 9 + 4.5
0.6x = 9 + 4.5

Combine like terms: 9 + 4.5 = 13.5
0.6x = 13.5

Divide each side by '0.6'.
x = 22.5

Simplifying
x = 22.5

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