-0.80(20)+0.70x=0.40(20+x)

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Solution for -0.80(20)+0.70x=0.40(20+x) equation: 


Simplifying
-0.80(20) + 0.70x = 0.40(20 + x)

Multiply -0.80 * 20
-16 + 0.70x = 0.40(20 + x)
-16 + 0.70x = (20 * 0.40 + x * 0.40)
-16 + 0.70x = (8 + 0.40x)

Solving
-16 + 0.70x = 8 + 0.40x

Solving for variable 'x'.

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

Add '-0.40x' to each side of the equation.
-16 + 0.70x + -0.40x = 8 + 0.40x + -0.40x

Combine like terms: 0.70x + -0.40x = 0.3x
-16 + 0.3x = 8 + 0.40x + -0.40x

Combine like terms: 0.40x + -0.40x = 0.00
-16 + 0.3x = 8 + 0.00
-16 + 0.3x = 8

Add '16' to each side of the equation.
-16 + 16 + 0.3x = 8 + 16

Combine like terms: -16 + 16 = 0
0 + 0.3x = 8 + 16
0.3x = 8 + 16

Combine like terms: 8 + 16 = 24
0.3x = 24

Divide each side by '0.3'.
x = 80

Simplifying
x = 80

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