20*.1+.5x=.8(20+x)

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Solution for 20*.1+.5x=.8(20+x) equation:


Simplifying
20 * 0.1 + 0.5x = 0.8(20 + x)

Multiply 20 * 0.1
2 + 0.5x = 0.8(20 + x)
2 + 0.5x = (20 * 0.8 + x * 0.8)
2 + 0.5x = (16 + 0.8x)

Solving
2 + 0.5x = 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.
2 + 0.5x + -0.8x = 16 + 0.8x + -0.8x

Combine like terms: 0.5x + -0.8x = -0.3x
2 + -0.3x = 16 + 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
2 + -0.3x = 16 + 0.0
2 + -0.3x = 16

Add '-2' to each side of the equation.
2 + -2 + -0.3x = 16 + -2

Combine like terms: 2 + -2 = 0
0 + -0.3x = 16 + -2
-0.3x = 16 + -2

Combine like terms: 16 + -2 = 14
-0.3x = 14

Divide each side by '-0.3'.
x = -46.66666667

Simplifying
x = -46.66666667

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