.8x-5=15-.4x

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Solution for .8x-5=15-.4x equation:


Simplifying
0.8x + -5 = 15 + -0.4x

Reorder the terms:
-5 + 0.8x = 15 + -0.4x

Solving
-5 + 0.8x = 15 + -0.4x

Solving for variable 'x'.

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

Add '0.4x' to each side of the equation.
-5 + 0.8x + 0.4x = 15 + -0.4x + 0.4x

Combine like terms: 0.8x + 0.4x = 1.2x
-5 + 1.2x = 15 + -0.4x + 0.4x

Combine like terms: -0.4x + 0.4x = 0.0
-5 + 1.2x = 15 + 0.0
-5 + 1.2x = 15

Add '5' to each side of the equation.
-5 + 5 + 1.2x = 15 + 5

Combine like terms: -5 + 5 = 0
0 + 1.2x = 15 + 5
1.2x = 15 + 5

Combine like terms: 15 + 5 = 20
1.2x = 20

Divide each side by '1.2'.
x = 16.66666667

Simplifying
x = 16.66666667

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