-17=7(u+4)+8u

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Solution for -17=7(u+4)+8u equation:


Simplifying
-17 = 7(u + 4) + 8u

Reorder the terms:
-17 = 7(4 + u) + 8u
-17 = (4 * 7 + u * 7) + 8u
-17 = (28 + 7u) + 8u

Combine like terms: 7u + 8u = 15u
-17 = 28 + 15u

Solving
-17 = 28 + 15u

Solving for variable 'u'.

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

Add '-15u' to each side of the equation.
-17 + -15u = 28 + 15u + -15u

Combine like terms: 15u + -15u = 0
-17 + -15u = 28 + 0
-17 + -15u = 28

Add '17' to each side of the equation.
-17 + 17 + -15u = 28 + 17

Combine like terms: -17 + 17 = 0
0 + -15u = 28 + 17
-15u = 28 + 17

Combine like terms: 28 + 17 = 45
-15u = 45

Divide each side by '-15'.
u = -3

Simplifying
u = -3

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