7u-(-4u)+4-15=

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Solution for 7u-(-4u)+4-15= equation:


Simplifying
7u + -1(-4u) + 4 + -15 = 0

Remove parenthesis around (-4u)
7u + -1 * -4u + 4 + -15 = 0

Multiply -1 * -4
7u + 4u + 4 + -15 = 0

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

Combine like terms: 4 + -15 = -11
-11 + 7u + 4u = 0

Combine like terms: 7u + 4u = 11u
-11 + 11u = 0

Solving
-11 + 11u = 0

Solving for variable 'u'.

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

Add '11' to each side of the equation.
-11 + 11 + 11u = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 11u = 0 + 11
11u = 0 + 11

Combine like terms: 0 + 11 = 11
11u = 11

Divide each side by '11'.
u = 1

Simplifying
u = 1

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