.8x+.2(100)=.4(142)

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Solution for .8x+.2(100)=.4(142) equation: 


Simplifying
0.8x + 0.2(100) = 0.4(142)

Multiply 0.2 * 100
0.8x + 20 = 0.4(142)

Reorder the terms:
20 + 0.8x = 0.4(142)

Multiply 0.4 * 142
20 + 0.8x = 56.8

Solving
20 + 0.8x = 56.8

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + 0.8x = 56.8 + -20

Combine like terms: 20 + -20 = 0
0 + 0.8x = 56.8 + -20
0.8x = 56.8 + -20

Combine like terms: 56.8 + -20 = 36.8
0.8x = 36.8

Divide each side by '0.8'.
x = 46

Simplifying
x = 46

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