-3u+9=-4u+4

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


Simplifying
-3u + 9 = -4u + 4

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

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

Solving
9 + -3u = 4 + -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.
9 + -3u + 4u = 4 + -4u + 4u

Combine like terms: -3u + 4u = 1u
9 + 1u = 4 + -4u + 4u

Combine like terms: -4u + 4u = 0
9 + 1u = 4 + 0
9 + 1u = 4

Add '-9' to each side of the equation.
9 + -9 + 1u = 4 + -9

Combine like terms: 9 + -9 = 0
0 + 1u = 4 + -9
1u = 4 + -9

Combine like terms: 4 + -9 = -5
1u = -5

Divide each side by '1'.
u = -5

Simplifying
u = -5

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