20+7u-18=43-9

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Solution for 20+7u-18=43-9 equation:


Simplifying
20 + 7u + -18 = 43 + -9

Reorder the terms:
20 + -18 + 7u = 43 + -9

Combine like terms: 20 + -18 = 2
2 + 7u = 43 + -9

Combine like terms: 43 + -9 = 34
2 + 7u = 34

Solving
2 + 7u = 34

Solving for variable 'u'.

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

Add '-2' to each side of the equation.
2 + -2 + 7u = 34 + -2

Combine like terms: 2 + -2 = 0
0 + 7u = 34 + -2
7u = 34 + -2

Combine like terms: 34 + -2 = 32
7u = 32

Divide each side by '7'.
u = 4.571428571

Simplifying
u = 4.571428571

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