30=6(u+7)-4u

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Solution for 30=6(u+7)-4u equation:


Simplifying
30 = 6(u + 7) + -4u

Reorder the terms:
30 = 6(7 + u) + -4u
30 = (7 * 6 + u * 6) + -4u
30 = (42 + 6u) + -4u

Combine like terms: 6u + -4u = 2u
30 = 42 + 2u

Solving
30 = 42 + 2u

Solving for variable 'u'.

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

Add '-2u' to each side of the equation.
30 + -2u = 42 + 2u + -2u

Combine like terms: 2u + -2u = 0
30 + -2u = 42 + 0
30 + -2u = 42

Add '-30' to each side of the equation.
30 + -30 + -2u = 42 + -30

Combine like terms: 30 + -30 = 0
0 + -2u = 42 + -30
-2u = 42 + -30

Combine like terms: 42 + -30 = 12
-2u = 12

Divide each side by '-2'.
u = -6

Simplifying
u = -6

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