3u-13=8(u-1)

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Solution for 3u-13=8(u-1) equation:


Simplifying
3u + -13 = 8(u + -1)

Reorder the terms:
-13 + 3u = 8(u + -1)

Reorder the terms:
-13 + 3u = 8(-1 + u)
-13 + 3u = (-1 * 8 + u * 8)
-13 + 3u = (-8 + 8u)

Solving
-13 + 3u = -8 + 8u

Solving for variable 'u'.

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

Add '-8u' to each side of the equation.
-13 + 3u + -8u = -8 + 8u + -8u

Combine like terms: 3u + -8u = -5u
-13 + -5u = -8 + 8u + -8u

Combine like terms: 8u + -8u = 0
-13 + -5u = -8 + 0
-13 + -5u = -8

Add '13' to each side of the equation.
-13 + 13 + -5u = -8 + 13

Combine like terms: -13 + 13 = 0
0 + -5u = -8 + 13
-5u = -8 + 13

Combine like terms: -8 + 13 = 5
-5u = 5

Divide each side by '-5'.
u = -1

Simplifying
u = -1

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