8(a-3)+15=31

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Solution for 8(a-3)+15=31 equation:


Simplifying
8(a + -3) + 15 = 31

Reorder the terms:
8(-3 + a) + 15 = 31
(-3 * 8 + a * 8) + 15 = 31
(-24 + 8a) + 15 = 31

Reorder the terms:
-24 + 15 + 8a = 31

Combine like terms: -24 + 15 = -9
-9 + 8a = 31

Solving
-9 + 8a = 31

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + 8a = 31 + 9

Combine like terms: -9 + 9 = 0
0 + 8a = 31 + 9
8a = 31 + 9

Combine like terms: 31 + 9 = 40
8a = 40

Divide each side by '8'.
a = 5

Simplifying
a = 5

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