.4x-12=0.15x+.8

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Solution for .4x-12=0.15x+.8 equation:


Simplifying
0.4x + -12 = 0.15x + 0.8

Reorder the terms:
-12 + 0.4x = 0.15x + 0.8

Reorder the terms:
-12 + 0.4x = 0.8 + 0.15x

Solving
-12 + 0.4x = 0.8 + 0.15x

Solving for variable 'x'.

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

Add '-0.15x' to each side of the equation.
-12 + 0.4x + -0.15x = 0.8 + 0.15x + -0.15x

Combine like terms: 0.4x + -0.15x = 0.25x
-12 + 0.25x = 0.8 + 0.15x + -0.15x

Combine like terms: 0.15x + -0.15x = 0.00
-12 + 0.25x = 0.8 + 0.00
-12 + 0.25x = 0.8

Add '12' to each side of the equation.
-12 + 12 + 0.25x = 0.8 + 12

Combine like terms: -12 + 12 = 0
0 + 0.25x = 0.8 + 12
0.25x = 0.8 + 12

Combine like terms: 0.8 + 12 = 12.8
0.25x = 12.8

Divide each side by '0.25'.
x = 51.2

Simplifying
x = 51.2

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