3(3u+7)=-4(3-2u)

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Solution for 3(3u+7)=-4(3-2u) equation:


Simplifying
3(3u + 7) = -4(3 + -2u)

Reorder the terms:
3(7 + 3u) = -4(3 + -2u)
(7 * 3 + 3u * 3) = -4(3 + -2u)
(21 + 9u) = -4(3 + -2u)
21 + 9u = (3 * -4 + -2u * -4)
21 + 9u = (-12 + 8u)

Solving
21 + 9u = -12 + 8u

Solving for variable 'u'.

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

Add '-8u' to each side of the equation.
21 + 9u + -8u = -12 + 8u + -8u

Combine like terms: 9u + -8u = 1u
21 + 1u = -12 + 8u + -8u

Combine like terms: 8u + -8u = 0
21 + 1u = -12 + 0
21 + 1u = -12

Add '-21' to each side of the equation.
21 + -21 + 1u = -12 + -21

Combine like terms: 21 + -21 = 0
0 + 1u = -12 + -21
1u = -12 + -21

Combine like terms: -12 + -21 = -33
1u = -33

Divide each side by '1'.
u = -33

Simplifying
u = -33

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