.8(x-100)=300

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Solution for .8(x-100)=300 equation:


Simplifying
0.8(x + -100) = 300

Reorder the terms:
0.8(-100 + x) = 300
(-100 * 0.8 + x * 0.8) = 300
(-80 + 0.8x) = 300

Solving
-80 + 0.8x = 300

Solving for variable 'x'.

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

Add '80' to each side of the equation.
-80 + 80 + 0.8x = 300 + 80

Combine like terms: -80 + 80 = 0
0 + 0.8x = 300 + 80
0.8x = 300 + 80

Combine like terms: 300 + 80 = 380
0.8x = 380

Divide each side by '0.8'.
x = 475

Simplifying
x = 475

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