9u-21=-14u-18

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Solution for 9u-21=-14u-18 equation:


Simplifying
9u + -21 = -14u + -18

Reorder the terms:
-21 + 9u = -14u + -18

Reorder the terms:
-21 + 9u = -18 + -14u

Solving
-21 + 9u = -18 + -14u

Solving for variable 'u'.

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

Add '14u' to each side of the equation.
-21 + 9u + 14u = -18 + -14u + 14u

Combine like terms: 9u + 14u = 23u
-21 + 23u = -18 + -14u + 14u

Combine like terms: -14u + 14u = 0
-21 + 23u = -18 + 0
-21 + 23u = -18

Add '21' to each side of the equation.
-21 + 21 + 23u = -18 + 21

Combine like terms: -21 + 21 = 0
0 + 23u = -18 + 21
23u = -18 + 21

Combine like terms: -18 + 21 = 3
23u = 3

Divide each side by '23'.
u = 0.1304347826

Simplifying
u = 0.1304347826

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