30=7u+5(u-6)

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Solution for 30=7u+5(u-6) equation:


Simplifying
30 = 7u + 5(u + -6)

Reorder the terms:
30 = 7u + 5(-6 + u)
30 = 7u + (-6 * 5 + u * 5)
30 = 7u + (-30 + 5u)

Reorder the terms:
30 = -30 + 7u + 5u

Combine like terms: 7u + 5u = 12u
30 = -30 + 12u

Solving
30 = -30 + 12u

Solving for variable 'u'.

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

Add '-12u' to each side of the equation.
30 + -12u = -30 + 12u + -12u

Combine like terms: 12u + -12u = 0
30 + -12u = -30 + 0
30 + -12u = -30

Add '-30' to each side of the equation.
30 + -30 + -12u = -30 + -30

Combine like terms: 30 + -30 = 0
0 + -12u = -30 + -30
-12u = -30 + -30

Combine like terms: -30 + -30 = -60
-12u = -60

Divide each side by '-12'.
u = 5

Simplifying
u = 5

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