4u-(-4)=7

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Solution for 4u-(-4)=7 equation: 


Simplifying
4u + -1(-4) = 7

Multiply -1 * -4
4u + 4 = 7

Reorder the terms:
4 + 4u = 7

Solving
4 + 4u = 7

Solving for variable 'u'.

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

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

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

Combine like terms: 7 + -4 = 3
4u = 3

Divide each side by '4'.
u = 0.75

Simplifying
u = 0.75

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