4u+8=7u-7

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Solution for 4u+8=7u-7 equation:


Simplifying
4u + 8 = 7u + -7

Reorder the terms:
8 + 4u = 7u + -7

Reorder the terms:
8 + 4u = -7 + 7u

Solving
8 + 4u = -7 + 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.
8 + 4u + -7u = -7 + 7u + -7u

Combine like terms: 4u + -7u = -3u
8 + -3u = -7 + 7u + -7u

Combine like terms: 7u + -7u = 0
8 + -3u = -7 + 0
8 + -3u = -7

Add '-8' to each side of the equation.
8 + -8 + -3u = -7 + -8

Combine like terms: 8 + -8 = 0
0 + -3u = -7 + -8
-3u = -7 + -8

Combine like terms: -7 + -8 = -15
-3u = -15

Divide each side by '-3'.
u = 5

Simplifying
u = 5

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