7u+2(u-7)=22

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Solution for 7u+2(u-7)=22 equation:


Simplifying
7u + 2(u + -7) = 22

Reorder the terms:
7u + 2(-7 + u) = 22
7u + (-7 * 2 + u * 2) = 22
7u + (-14 + 2u) = 22

Reorder the terms:
-14 + 7u + 2u = 22

Combine like terms: 7u + 2u = 9u
-14 + 9u = 22

Solving
-14 + 9u = 22

Solving for variable 'u'.

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

Add '14' to each side of the equation.
-14 + 14 + 9u = 22 + 14

Combine like terms: -14 + 14 = 0
0 + 9u = 22 + 14
9u = 22 + 14

Combine like terms: 22 + 14 = 36
9u = 36

Divide each side by '9'.
u = 4

Simplifying
u = 4

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