9u+2=13u-7

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Solution for 9u+2=13u-7 equation:


Simplifying
9u + 2 = 13u + -7

Reorder the terms:
2 + 9u = 13u + -7

Reorder the terms:
2 + 9u = -7 + 13u

Solving
2 + 9u = -7 + 13u

Solving for variable 'u'.

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

Add '-13u' to each side of the equation.
2 + 9u + -13u = -7 + 13u + -13u

Combine like terms: 9u + -13u = -4u
2 + -4u = -7 + 13u + -13u

Combine like terms: 13u + -13u = 0
2 + -4u = -7 + 0
2 + -4u = -7

Add '-2' to each side of the equation.
2 + -2 + -4u = -7 + -2

Combine like terms: 2 + -2 = 0
0 + -4u = -7 + -2
-4u = -7 + -2

Combine like terms: -7 + -2 = -9
-4u = -9

Divide each side by '-4'.
u = 2.25

Simplifying
u = 2.25

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