7+3a=31

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Solution for 7+3a=31 equation: 


Simplifying
7 + 3a = 31

Solving
7 + 3a = 31

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + 3a = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 3a = 31 + -7
3a = 31 + -7

Combine like terms: 31 + -7 = 24
3a = 24

Divide each side by '3'.
a = 8

Simplifying
a = 8

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