4a+7+2a=31

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Solution for 4a+7+2a=31 equation: 


Simplifying
4a + 7 + 2a = 31

Reorder the terms:
7 + 4a + 2a = 31

Combine like terms: 4a + 2a = 6a
7 + 6a = 31

Solving
7 + 6a = 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 + 6a = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 6a = 31 + -7
6a = 31 + -7

Combine like terms: 31 + -7 = 24
6a = 24

Divide each side by '6'.
a = 4

Simplifying
a = 4

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