-7u-5=-3u-9

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Solution for -7u-5=-3u-9 equation:


Simplifying
-7u + -5 = -3u + -9

Reorder the terms:
-5 + -7u = -3u + -9

Reorder the terms:
-5 + -7u = -9 + -3u

Solving
-5 + -7u = -9 + -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.
-5 + -7u + 3u = -9 + -3u + 3u

Combine like terms: -7u + 3u = -4u
-5 + -4u = -9 + -3u + 3u

Combine like terms: -3u + 3u = 0
-5 + -4u = -9 + 0
-5 + -4u = -9

Add '5' to each side of the equation.
-5 + 5 + -4u = -9 + 5

Combine like terms: -5 + 5 = 0
0 + -4u = -9 + 5
-4u = -9 + 5

Combine like terms: -9 + 5 = -4
-4u = -4

Divide each side by '-4'.
u = 1

Simplifying
u = 1

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