-7-4u-15y=0

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Solution for -7-4u-15y=0 equation:


Simplifying
-7 + -4u + -15y = 0

Solving
-7 + -4u + -15y = 0

Solving for variable 'u'.

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

Add '7' to each side of the equation.
-7 + -4u + 7 + -15y = 0 + 7

Reorder the terms:
-7 + 7 + -4u + -15y = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -4u + -15y = 0 + 7
-4u + -15y = 0 + 7

Combine like terms: 0 + 7 = 7
-4u + -15y = 7

Add '15y' to each side of the equation.
-4u + -15y + 15y = 7 + 15y

Combine like terms: -15y + 15y = 0
-4u + 0 = 7 + 15y
-4u = 7 + 15y

Divide each side by '-4'.
u = -1.75 + -3.75y

Simplifying
u = -1.75 + -3.75y

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