9=.5(25-x)

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Solution for 9=.5(25-x) equation:


Simplifying
9 = 0.5(25 + -1x)
9 = (25 * 0.5 + -1x * 0.5)
9 = (12.5 + -0.5x)

Solving
9 = 12.5 + -0.5x

Solving for variable 'x'.

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

Add '0.5x' to each side of the equation.
9 + 0.5x = 12.5 + -0.5x + 0.5x

Combine like terms: -0.5x + 0.5x = 0.0
9 + 0.5x = 12.5 + 0.0
9 + 0.5x = 12.5

Add '-9' to each side of the equation.
9 + -9 + 0.5x = 12.5 + -9

Combine like terms: 9 + -9 = 0
0 + 0.5x = 12.5 + -9
0.5x = 12.5 + -9

Combine like terms: 12.5 + -9 = 3.5
0.5x = 3.5

Divide each side by '0.5'.
x = 7

Simplifying
x = 7

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