-7=9+4U

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Solution for -7=9+4U equation:


Simplifying
-7 = 9 + 4U

Solving
-7 = 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.
-7 + -4U = 9 + 4U + -4U

Combine like terms: 4U + -4U = 0
-7 + -4U = 9 + 0
-7 + -4U = 9

Add '7' to each side of the equation.
-7 + 7 + -4U = 9 + 7

Combine like terms: -7 + 7 = 0
0 + -4U = 9 + 7
-4U = 9 + 7

Combine like terms: 9 + 7 = 16
-4U = 16

Divide each side by '-4'.
U = -4

Simplifying
U = -4

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