12-0.5(u-5)=0.9(7u-5)

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Solution for 12-0.5(u-5)=0.9(7u-5) equation:


Simplifying
12 + -0.5(u + -5) = 0.9(7u + -5)

Reorder the terms:
12 + -0.5(-5 + u) = 0.9(7u + -5)
12 + (-5 * -0.5 + u * -0.5) = 0.9(7u + -5)
12 + (2.5 + -0.5u) = 0.9(7u + -5)

Combine like terms: 12 + 2.5 = 14.5
14.5 + -0.5u = 0.9(7u + -5)

Reorder the terms:
14.5 + -0.5u = 0.9(-5 + 7u)
14.5 + -0.5u = (-5 * 0.9 + 7u * 0.9)
14.5 + -0.5u = (-4.5 + 6.3u)

Solving
14.5 + -0.5u = -4.5 + 6.3u

Solving for variable 'u'.

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

Add '-6.3u' to each side of the equation.
14.5 + -0.5u + -6.3u = -4.5 + 6.3u + -6.3u

Combine like terms: -0.5u + -6.3u = -6.8u
14.5 + -6.8u = -4.5 + 6.3u + -6.3u

Combine like terms: 6.3u + -6.3u = 0.0
14.5 + -6.8u = -4.5 + 0.0
14.5 + -6.8u = -4.5

Add '-14.5' to each side of the equation.
14.5 + -14.5 + -6.8u = -4.5 + -14.5

Combine like terms: 14.5 + -14.5 = 0.0
0.0 + -6.8u = -4.5 + -14.5
-6.8u = -4.5 + -14.5

Combine like terms: -4.5 + -14.5 = -19
-6.8u = -19

Divide each side by '-6.8'.
u = 2.794117647

Simplifying
u = 2.794117647

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