0.80x+0.5(20-x)=.10(40)

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Solution for 0.80x+0.5(20-x)=.10(40) equation:


Simplifying
0.80x + 0.5(20 + -1x) = 0.10(40)
0.80x + (20 * 0.5 + -1x * 0.5) = 0.10(40)
0.80x + (10 + -0.5x) = 0.10(40)

Reorder the terms:
10 + 0.80x + -0.5x = 0.10(40)

Combine like terms: 0.80x + -0.5x = 0.3x
10 + 0.3x = 0.10(40)

Multiply 0.10 * 40
10 + 0.3x = 4

Solving
10 + 0.3x = 4

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 0.3x = 4 + -10

Combine like terms: 10 + -10 = 0
0 + 0.3x = 4 + -10
0.3x = 4 + -10

Combine like terms: 4 + -10 = -6
0.3x = -6

Divide each side by '0.3'.
x = -20

Simplifying
x = -20

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