-2(2u-9)+7u=7(u+4)

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Solution for -2(2u-9)+7u=7(u+4) equation:


Simplifying
-2(2u + -9) + 7u = 7(u + 4)

Reorder the terms:
-2(-9 + 2u) + 7u = 7(u + 4)
(-9 * -2 + 2u * -2) + 7u = 7(u + 4)
(18 + -4u) + 7u = 7(u + 4)

Combine like terms: -4u + 7u = 3u
18 + 3u = 7(u + 4)

Reorder the terms:
18 + 3u = 7(4 + u)
18 + 3u = (4 * 7 + u * 7)
18 + 3u = (28 + 7u)

Solving
18 + 3u = 28 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
18 + 3u + -7u = 28 + 7u + -7u

Combine like terms: 3u + -7u = -4u
18 + -4u = 28 + 7u + -7u

Combine like terms: 7u + -7u = 0
18 + -4u = 28 + 0
18 + -4u = 28

Add '-18' to each side of the equation.
18 + -18 + -4u = 28 + -18

Combine like terms: 18 + -18 = 0
0 + -4u = 28 + -18
-4u = 28 + -18

Combine like terms: 28 + -18 = 10
-4u = 10

Divide each side by '-4'.
u = -2.5

Simplifying
u = -2.5

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