-7(2u-1)+9u=3(u+1)

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Solution for -7(2u-1)+9u=3(u+1) equation:


Simplifying
-7(2u + -1) + 9u = 3(u + 1)

Reorder the terms:
-7(-1 + 2u) + 9u = 3(u + 1)
(-1 * -7 + 2u * -7) + 9u = 3(u + 1)
(7 + -14u) + 9u = 3(u + 1)

Combine like terms: -14u + 9u = -5u
7 + -5u = 3(u + 1)

Reorder the terms:
7 + -5u = 3(1 + u)
7 + -5u = (1 * 3 + u * 3)
7 + -5u = (3 + 3u)

Solving
7 + -5u = 3 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
7 + -5u + -3u = 3 + 3u + -3u

Combine like terms: -5u + -3u = -8u
7 + -8u = 3 + 3u + -3u

Combine like terms: 3u + -3u = 0
7 + -8u = 3 + 0
7 + -8u = 3

Add '-7' to each side of the equation.
7 + -7 + -8u = 3 + -7

Combine like terms: 7 + -7 = 0
0 + -8u = 3 + -7
-8u = 3 + -7

Combine like terms: 3 + -7 = -4
-8u = -4

Divide each side by '-8'.
u = 0.5

Simplifying
u = 0.5

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