7(7-3u)=-u-11

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Solution for 7(7-3u)=-u-11 equation:


Simplifying
7(7 + -3u) = -1u + -11
(7 * 7 + -3u * 7) = -1u + -11
(49 + -21u) = -1u + -11

Reorder the terms:
49 + -21u = -11 + -1u

Solving
49 + -21u = -11 + -1u

Solving for variable 'u'.

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

Add 'u' to each side of the equation.
49 + -21u + u = -11 + -1u + u

Combine like terms: -21u + u = -20u
49 + -20u = -11 + -1u + u

Combine like terms: -1u + u = 0
49 + -20u = -11 + 0
49 + -20u = -11

Add '-49' to each side of the equation.
49 + -49 + -20u = -11 + -49

Combine like terms: 49 + -49 = 0
0 + -20u = -11 + -49
-20u = -11 + -49

Combine like terms: -11 + -49 = -60
-20u = -60

Divide each side by '-20'.
u = 3

Simplifying
u = 3

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