6u+9=8u+7

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Solution for 6u+9=8u+7 equation:


Simplifying
6u + 9 = 8u + 7

Reorder the terms:
9 + 6u = 8u + 7

Reorder the terms:
9 + 6u = 7 + 8u

Solving
9 + 6u = 7 + 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.
9 + 6u + -8u = 7 + 8u + -8u

Combine like terms: 6u + -8u = -2u
9 + -2u = 7 + 8u + -8u

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

Divide each side by '-2'.
u = 1

Simplifying
u = 1

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