.5(x-20)+1.5(x-4)=x+9

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Solution for .5(x-20)+1.5(x-4)=x+9 equation:


Simplifying
0.5(x + -20) + 1.5(x + -4) = x + 9

Reorder the terms:
0.5(-20 + x) + 1.5(x + -4) = x + 9
(-20 * 0.5 + x * 0.5) + 1.5(x + -4) = x + 9
(-10 + 0.5x) + 1.5(x + -4) = x + 9

Reorder the terms:
-10 + 0.5x + 1.5(-4 + x) = x + 9
-10 + 0.5x + (-4 * 1.5 + x * 1.5) = x + 9
-10 + 0.5x + (-6 + 1.5x) = x + 9

Reorder the terms:
-10 + -6 + 0.5x + 1.5x = x + 9

Combine like terms: -10 + -6 = -16
-16 + 0.5x + 1.5x = x + 9

Combine like terms: 0.5x + 1.5x = 2x
-16 + 2x = x + 9

Reorder the terms:
-16 + 2x = 9 + x

Solving
-16 + 2x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-16 + 2x + -1x = 9 + x + -1x

Combine like terms: 2x + -1x = 1x
-16 + 1x = 9 + x + -1x

Combine like terms: x + -1x = 0
-16 + 1x = 9 + 0
-16 + 1x = 9

Add '16' to each side of the equation.
-16 + 16 + 1x = 9 + 16

Combine like terms: -16 + 16 = 0
0 + 1x = 9 + 16
1x = 9 + 16

Combine like terms: 9 + 16 = 25
1x = 25

Divide each side by '1'.
x = 25

Simplifying
x = 25

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