5(3a+1)-2(a+1)=7

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Solution for 5(3a+1)-2(a+1)=7 equation:


Simplifying
5(3a + 1) + -2(a + 1) = 7

Reorder the terms:
5(1 + 3a) + -2(a + 1) = 7
(1 * 5 + 3a * 5) + -2(a + 1) = 7
(5 + 15a) + -2(a + 1) = 7

Reorder the terms:
5 + 15a + -2(1 + a) = 7
5 + 15a + (1 * -2 + a * -2) = 7
5 + 15a + (-2 + -2a) = 7

Reorder the terms:
5 + -2 + 15a + -2a = 7

Combine like terms: 5 + -2 = 3
3 + 15a + -2a = 7

Combine like terms: 15a + -2a = 13a
3 + 13a = 7

Solving
3 + 13a = 7

Solving for variable 'a'.

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

Add '-3' to each side of the equation.
3 + -3 + 13a = 7 + -3

Combine like terms: 3 + -3 = 0
0 + 13a = 7 + -3
13a = 7 + -3

Combine like terms: 7 + -3 = 4
13a = 4

Divide each side by '13'.
a = 0.3076923077

Simplifying
a = 0.3076923077

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