15+4a-4=

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Solution for 15+4a-4= equation:


Simplifying
15 + 4a + -4 = 0

Reorder the terms:
15 + -4 + 4a = 0

Combine like terms: 15 + -4 = 11
11 + 4a = 0

Solving
11 + 4a = 0

Solving for variable 'a'.

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

Add '-11' to each side of the equation.
11 + -11 + 4a = 0 + -11

Combine like terms: 11 + -11 = 0
0 + 4a = 0 + -11
4a = 0 + -11

Combine like terms: 0 + -11 = -11
4a = -11

Divide each side by '4'.
a = -2.75

Simplifying
a = -2.75

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