8x+3.90=12x+2.10-3

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Solution for 8x+3.90=12x+2.10-3 equation: 


Simplifying
8x + 3.90 = 12x + 2.10 + -3

Reorder the terms:
3.90 + 8x = 12x + 2.10 + -3

Reorder the terms:
3.90 + 8x = 2.10 + -3 + 12x

Combine like terms: 2.10 + -3 = -0.9
3.90 + 8x = -0.9 + 12x

Solving
3.90 + 8x = -0.9 + 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.
3.90 + 8x + -12x = -0.9 + 12x + -12x

Combine like terms: 8x + -12x = -4x
3.90 + -4x = -0.9 + 12x + -12x

Combine like terms: 12x + -12x = 0
3.90 + -4x = -0.9 + 0
3.90 + -4x = -0.9

Add '-3.90' to each side of the equation.
3.90 + -3.90 + -4x = -0.9 + -3.90

Combine like terms: 3.90 + -3.90 = 0.00
0.00 + -4x = -0.9 + -3.90
-4x = -0.9 + -3.90

Combine like terms: -0.9 + -3.90 = -4.8
-4x = -4.8

Divide each side by '-4'.
x = 1.2

Simplifying
x = 1.2

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