-7(u+8)=7u+42

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Solution for -7(u+8)=7u+42 equation:


Simplifying
-7(u + 8) = 7u + 42

Reorder the terms:
-7(8 + u) = 7u + 42
(8 * -7 + u * -7) = 7u + 42
(-56 + -7u) = 7u + 42

Reorder the terms:
-56 + -7u = 42 + 7u

Solving
-56 + -7u = 42 + 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.
-56 + -7u + -7u = 42 + 7u + -7u

Combine like terms: -7u + -7u = -14u
-56 + -14u = 42 + 7u + -7u

Combine like terms: 7u + -7u = 0
-56 + -14u = 42 + 0
-56 + -14u = 42

Add '56' to each side of the equation.
-56 + 56 + -14u = 42 + 56

Combine like terms: -56 + 56 = 0
0 + -14u = 42 + 56
-14u = 42 + 56

Combine like terms: 42 + 56 = 98
-14u = 98

Divide each side by '-14'.
u = -7

Simplifying
u = -7

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