-14u+7+3u=7u+21

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Solution for -14u+7+3u=7u+21 equation:


Simplifying
-14u + 7 + 3u = 7u + 21

Reorder the terms:
7 + -14u + 3u = 7u + 21

Combine like terms: -14u + 3u = -11u
7 + -11u = 7u + 21

Reorder the terms:
7 + -11u = 21 + 7u

Solving
7 + -11u = 21 + 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.
7 + -11u + -7u = 21 + 7u + -7u

Combine like terms: -11u + -7u = -18u
7 + -18u = 21 + 7u + -7u

Combine like terms: 7u + -7u = 0
7 + -18u = 21 + 0
7 + -18u = 21

Add '-7' to each side of the equation.
7 + -7 + -18u = 21 + -7

Combine like terms: 7 + -7 = 0
0 + -18u = 21 + -7
-18u = 21 + -7

Combine like terms: 21 + -7 = 14
-18u = 14

Divide each side by '-18'.
u = -0.7777777778

Simplifying
u = -0.7777777778

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