4(u+6)-7u=21

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Solution for 4(u+6)-7u=21 equation:


Simplifying
4(u + 6) + -7u = 21

Reorder the terms:
4(6 + u) + -7u = 21
(6 * 4 + u * 4) + -7u = 21
(24 + 4u) + -7u = 21

Combine like terms: 4u + -7u = -3u
24 + -3u = 21

Solving
24 + -3u = 21

Solving for variable 'u'.

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

Add '-24' to each side of the equation.
24 + -24 + -3u = 21 + -24

Combine like terms: 24 + -24 = 0
0 + -3u = 21 + -24
-3u = 21 + -24

Combine like terms: 21 + -24 = -3
-3u = -3

Divide each side by '-3'.
u = 1

Simplifying
u = 1

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