-7(u+3)=u-9+3(2u+2)

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Solution for -7(u+3)=u-9+3(2u+2) equation:


Simplifying
-7(u + 3) = u + -9 + 3(2u + 2)

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

Reorder the terms:
-21 + -7u = u + -9 + 3(2 + 2u)
-21 + -7u = u + -9 + (2 * 3 + 2u * 3)
-21 + -7u = u + -9 + (6 + 6u)

Reorder the terms:
-21 + -7u = -9 + 6 + u + 6u

Combine like terms: -9 + 6 = -3
-21 + -7u = -3 + u + 6u

Combine like terms: u + 6u = 7u
-21 + -7u = -3 + 7u

Solving
-21 + -7u = -3 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
-21 + -7u + -7u = -3 + 7u + -7u

Combine like terms: -7u + -7u = -14u
-21 + -14u = -3 + 7u + -7u

Combine like terms: 7u + -7u = 0
-21 + -14u = -3 + 0
-21 + -14u = -3

Add '21' to each side of the equation.
-21 + 21 + -14u = -3 + 21

Combine like terms: -21 + 21 = 0
0 + -14u = -3 + 21
-14u = -3 + 21

Combine like terms: -3 + 21 = 18
-14u = 18

Divide each side by '-14'.
u = -1.285714286

Simplifying
u = -1.285714286

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