12-.8(x-15)=4

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Solution for 12-.8(x-15)=4 equation:


Simplifying
12 + -0.8(x + -15) = 4

Reorder the terms:
12 + -0.8(-15 + x) = 4
12 + (-15 * -0.8 + x * -0.8) = 4
12 + (12 + -0.8x) = 4

Combine like terms: 12 + 12 = 24
24 + -0.8x = 4

Solving
24 + -0.8x = 4

Solving for variable 'x'.

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

Add '-24' to each side of the equation.
24 + -24 + -0.8x = 4 + -24

Combine like terms: 24 + -24 = 0
0 + -0.8x = 4 + -24
-0.8x = 4 + -24

Combine like terms: 4 + -24 = -20
-0.8x = -20

Divide each side by '-0.8'.
x = 25

Simplifying
x = 25

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