(u-7)+(u-6)=u

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Solution for (u-7)+(u-6)=u equation:


Simplifying
(u + -7) + (u + -6) = u

Reorder the terms:
(-7 + u) + (u + -6) = u

Remove parenthesis around (-7 + u)
-7 + u + (u + -6) = u

Reorder the terms:
-7 + u + (-6 + u) = u

Remove parenthesis around (-6 + u)
-7 + u + -6 + u = u

Reorder the terms:
-7 + -6 + u + u = u

Combine like terms: -7 + -6 = -13
-13 + u + u = u

Combine like terms: u + u = 2u
-13 + 2u = u

Solving
-13 + 2u = u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
-13 + 2u + -1u = u + -1u

Combine like terms: 2u + -1u = 1u
-13 + 1u = u + -1u

Combine like terms: u + -1u = 0
-13 + 1u = 0

Add '13' to each side of the equation.
-13 + 13 + 1u = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 1u = 0 + 13
1u = 0 + 13

Combine like terms: 0 + 13 = 13
1u = 13

Divide each side by '1'.
u = 13

Simplifying
u = 13

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