164=0.8(220-x)

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Solution for 164=0.8(220-x) equation:


Simplifying
164 = 0.8(220 + -1x)
164 = (220 * 0.8 + -1x * 0.8)
164 = (176 + -0.8x)

Solving
164 = 176 + -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.
164 + 0.8x = 176 + -0.8x + 0.8x

Combine like terms: -0.8x + 0.8x = 0.0
164 + 0.8x = 176 + 0.0
164 + 0.8x = 176

Add '-164' to each side of the equation.
164 + -164 + 0.8x = 176 + -164

Combine like terms: 164 + -164 = 0
0 + 0.8x = 176 + -164
0.8x = 176 + -164

Combine like terms: 176 + -164 = 12
0.8x = 12

Divide each side by '0.8'.
x = 15

Simplifying
x = 15

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