-105=15a

Solution for -105=15a equation:

Simplifying
-105 = 15a

Solving
-105 = 15a

Solving for variable 'a'.

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

Add '-15a' to each side of the equation.
-105 + -15a = 15a + -15a

Combine like terms: 15a + -15a = 0
-105 + -15a = 0

Add '105' to each side of the equation.
-105 + 105 + -15a = 0 + 105

Combine like terms: -105 + 105 = 0
0 + -15a = 0 + 105
-15a = 0 + 105

Combine like terms: 0 + 105 = 105
-15a = 105

Divide each side by '-15'.
a = -7

Simplifying
a = -7