-8(7-x)=0.8(x+20)

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Solution for -8(7-x)=0.8(x+20) equation:


Simplifying
-8(7 + -1x) = 0.8(x + 20)
(7 * -8 + -1x * -8) = 0.8(x + 20)
(-56 + 8x) = 0.8(x + 20)

Reorder the terms:
-56 + 8x = 0.8(20 + x)
-56 + 8x = (20 * 0.8 + x * 0.8)
-56 + 8x = (16 + 0.8x)

Solving
-56 + 8x = 16 + 0.8x

Solving for variable 'x'.

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

Add '-0.8x' to each side of the equation.
-56 + 8x + -0.8x = 16 + 0.8x + -0.8x

Combine like terms: 8x + -0.8x = 7.2x
-56 + 7.2x = 16 + 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
-56 + 7.2x = 16 + 0.0
-56 + 7.2x = 16

Add '56' to each side of the equation.
-56 + 56 + 7.2x = 16 + 56

Combine like terms: -56 + 56 = 0
0 + 7.2x = 16 + 56
7.2x = 16 + 56

Combine like terms: 16 + 56 = 72
7.2x = 72

Divide each side by '7.2'.
x = 10

Simplifying
x = 10

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