-28-17=15a

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Solution for -28-17=15a equation:


Simplifying
-28 + -17 = 15a

Combine like terms: -28 + -17 = -45
-45 = 15a

Solving
-45 = 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.
-45 + -15a = 15a + -15a

Combine like terms: 15a + -15a = 0
-45 + -15a = 0

Add '45' to each side of the equation.
-45 + 45 + -15a = 0 + 45

Combine like terms: -45 + 45 = 0
0 + -15a = 0 + 45
-15a = 0 + 45

Combine like terms: 0 + 45 = 45
-15a = 45

Divide each side by '-15'.
a = -3

Simplifying
a = -3

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