5u-7=3u-15

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Solution for 5u-7=3u-15 equation:


Simplifying
5u + -7 = 3u + -15

Reorder the terms:
-7 + 5u = 3u + -15

Reorder the terms:
-7 + 5u = -15 + 3u

Solving
-7 + 5u = -15 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
-7 + 5u + -3u = -15 + 3u + -3u

Combine like terms: 5u + -3u = 2u
-7 + 2u = -15 + 3u + -3u

Combine like terms: 3u + -3u = 0
-7 + 2u = -15 + 0
-7 + 2u = -15

Add '7' to each side of the equation.
-7 + 7 + 2u = -15 + 7

Combine like terms: -7 + 7 = 0
0 + 2u = -15 + 7
2u = -15 + 7

Combine like terms: -15 + 7 = -8
2u = -8

Divide each side by '2'.
u = -4

Simplifying
u = -4

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