10+8u-1=10u-7

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Solution for 10+8u-1=10u-7 equation:


Simplifying
10 + 8u + -1 = 10u + -7

Reorder the terms:
10 + -1 + 8u = 10u + -7

Combine like terms: 10 + -1 = 9
9 + 8u = 10u + -7

Reorder the terms:
9 + 8u = -7 + 10u

Solving
9 + 8u = -7 + 10u

Solving for variable 'u'.

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

Add '-10u' to each side of the equation.
9 + 8u + -10u = -7 + 10u + -10u

Combine like terms: 8u + -10u = -2u
9 + -2u = -7 + 10u + -10u

Combine like terms: 10u + -10u = 0
9 + -2u = -7 + 0
9 + -2u = -7

Add '-9' to each side of the equation.
9 + -9 + -2u = -7 + -9

Combine like terms: 9 + -9 = 0
0 + -2u = -7 + -9
-2u = -7 + -9

Combine like terms: -7 + -9 = -16
-2u = -16

Divide each side by '-2'.
u = 8

Simplifying
u = 8

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