8u-3=4u+9

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Solution for 8u-3=4u+9 equation:


Simplifying
8u + -3 = 4u + 9

Reorder the terms:
-3 + 8u = 4u + 9

Reorder the terms:
-3 + 8u = 9 + 4u

Solving
-3 + 8u = 9 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
-3 + 8u + -4u = 9 + 4u + -4u

Combine like terms: 8u + -4u = 4u
-3 + 4u = 9 + 4u + -4u

Combine like terms: 4u + -4u = 0
-3 + 4u = 9 + 0
-3 + 4u = 9

Add '3' to each side of the equation.
-3 + 3 + 4u = 9 + 3

Combine like terms: -3 + 3 = 0
0 + 4u = 9 + 3
4u = 9 + 3

Combine like terms: 9 + 3 = 12
4u = 12

Divide each side by '4'.
u = 3

Simplifying
u = 3

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