1.5x+4.2=3x+12

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Solution for 1.5x+4.2=3x+12 equation:


Simplifying
1.5x + 4.2 = 3x + 12

Reorder the terms:
4.2 + 1.5x = 3x + 12

Reorder the terms:
4.2 + 1.5x = 12 + 3x

Solving
4.2 + 1.5x = 12 + 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.
4.2 + 1.5x + -3x = 12 + 3x + -3x

Combine like terms: 1.5x + -3x = -1.5x
4.2 + -1.5x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
4.2 + -1.5x = 12 + 0
4.2 + -1.5x = 12

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -1.5x = 12 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -1.5x = 12 + -4.2
-1.5x = 12 + -4.2

Combine like terms: 12 + -4.2 = 7.8
-1.5x = 7.8

Divide each side by '-1.5'.
x = -5.2

Simplifying
x = -5.2

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