-1-4a=15

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Solution for -1-4a=15 equation: 


Simplifying
-1 + -4a = 15

Solving
-1 + -4a = 15

Solving for variable 'a'.

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

Add '1' to each side of the equation.
-1 + 1 + -4a = 15 + 1

Combine like terms: -1 + 1 = 0
0 + -4a = 15 + 1
-4a = 15 + 1

Combine like terms: 15 + 1 = 16
-4a = 16

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

Simplifying
a = -4

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