21a+17+15a=-48

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Solution for 21a+17+15a=-48 equation: 


Simplifying
21a + 17 + 15a = -48

Reorder the terms:
17 + 21a + 15a = -48

Combine like terms: 21a + 15a = 36a
17 + 36a = -48

Solving
17 + 36a = -48

Solving for variable 'a'.

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

Add '-17' to each side of the equation.
17 + -17 + 36a = -48 + -17

Combine like terms: 17 + -17 = 0
0 + 36a = -48 + -17
36a = -48 + -17

Combine like terms: -48 + -17 = -65
36a = -65

Divide each side by '36'.
a = -1.805555556

Simplifying
a = -1.805555556

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