21+17+15a=-48

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


Simplifying
21 + 17 + 15a = -48

Combine like terms: 21 + 17 = 38
38 + 15a = -48

Solving
38 + 15a = -48

Solving for variable 'a'.

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

Add '-38' to each side of the equation.
38 + -38 + 15a = -48 + -38

Combine like terms: 38 + -38 = 0
0 + 15a = -48 + -38
15a = -48 + -38

Combine like terms: -48 + -38 = -86
15a = -86

Divide each side by '15'.
a = -5.733333333

Simplifying
a = -5.733333333

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