5(1+4a)=31+7a

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Solution for 5(1+4a)=31+7a equation:


Simplifying
5(1 + 4a) = 31 + 7a
(1 * 5 + 4a * 5) = 31 + 7a
(5 + 20a) = 31 + 7a

Solving
5 + 20a = 31 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
5 + 20a + -7a = 31 + 7a + -7a

Combine like terms: 20a + -7a = 13a
5 + 13a = 31 + 7a + -7a

Combine like terms: 7a + -7a = 0
5 + 13a = 31 + 0
5 + 13a = 31

Add '-5' to each side of the equation.
5 + -5 + 13a = 31 + -5

Combine like terms: 5 + -5 = 0
0 + 13a = 31 + -5
13a = 31 + -5

Combine like terms: 31 + -5 = 26
13a = 26

Divide each side by '13'.
a = 2

Simplifying
a = 2

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