1x-50=0.8(x-100)

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Solution for 1x-50=0.8(x-100) equation:


Simplifying
1x + -50 = 0.8(x + -100)

Reorder the terms:
-50 + 1x = 0.8(x + -100)

Reorder the terms:
-50 + 1x = 0.8(-100 + x)
-50 + 1x = (-100 * 0.8 + x * 0.8)
-50 + 1x = (-80 + 0.8x)

Solving
-50 + 1x = -80 + 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.
-50 + 1x + -0.8x = -80 + 0.8x + -0.8x

Combine like terms: 1x + -0.8x = 0.2x
-50 + 0.2x = -80 + 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
-50 + 0.2x = -80 + 0.0
-50 + 0.2x = -80

Add '50' to each side of the equation.
-50 + 50 + 0.2x = -80 + 50

Combine like terms: -50 + 50 = 0
0 + 0.2x = -80 + 50
0.2x = -80 + 50

Combine like terms: -80 + 50 = -30
0.2x = -30

Divide each side by '0.2'.
x = -150

Simplifying
x = -150

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