.8(x+40)+.2x=57

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Solution for .8(x+40)+.2x=57 equation:


Simplifying
0.8(x + 40) + 0.2x = 57

Reorder the terms:
0.8(40 + x) + 0.2x = 57
(40 * 0.8 + x * 0.8) + 0.2x = 57
(32 + 0.8x) + 0.2x = 57

Combine like terms: 0.8x + 0.2x = 1x
32 + 1x = 57

Solving
32 + 1x = 57

Solving for variable 'x'.

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

Add '-32' to each side of the equation.
32 + -32 + 1x = 57 + -32

Combine like terms: 32 + -32 = 0
0 + 1x = 57 + -32
1x = 57 + -32

Combine like terms: 57 + -32 = 25
1x = 25

Divide each side by '1'.
x = 25

Simplifying
x = 25

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