u-7+2(2u+1)=-7(u+2)

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Solution for u-7+2(2u+1)=-7(u+2) equation:


Simplifying
u + -7 + 2(2u + 1) = -7(u + 2)

Reorder the terms:
u + -7 + 2(1 + 2u) = -7(u + 2)
u + -7 + (1 * 2 + 2u * 2) = -7(u + 2)
u + -7 + (2 + 4u) = -7(u + 2)

Reorder the terms:
-7 + 2 + u + 4u = -7(u + 2)

Combine like terms: -7 + 2 = -5
-5 + u + 4u = -7(u + 2)

Combine like terms: u + 4u = 5u
-5 + 5u = -7(u + 2)

Reorder the terms:
-5 + 5u = -7(2 + u)
-5 + 5u = (2 * -7 + u * -7)
-5 + 5u = (-14 + -7u)

Solving
-5 + 5u = -14 + -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.
-5 + 5u + 7u = -14 + -7u + 7u

Combine like terms: 5u + 7u = 12u
-5 + 12u = -14 + -7u + 7u

Combine like terms: -7u + 7u = 0
-5 + 12u = -14 + 0
-5 + 12u = -14

Add '5' to each side of the equation.
-5 + 5 + 12u = -14 + 5

Combine like terms: -5 + 5 = 0
0 + 12u = -14 + 5
12u = -14 + 5

Combine like terms: -14 + 5 = -9
12u = -9

Divide each side by '12'.
u = -0.75

Simplifying
u = -0.75

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