5(a-1)+2(a+3)=12

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Solution for 5(a-1)+2(a+3)=12 equation:


Simplifying
5(a + -1) + 2(a + 3) = 12

Reorder the terms:
5(-1 + a) + 2(a + 3) = 12
(-1 * 5 + a * 5) + 2(a + 3) = 12
(-5 + 5a) + 2(a + 3) = 12

Reorder the terms:
-5 + 5a + 2(3 + a) = 12
-5 + 5a + (3 * 2 + a * 2) = 12
-5 + 5a + (6 + 2a) = 12

Reorder the terms:
-5 + 6 + 5a + 2a = 12

Combine like terms: -5 + 6 = 1
1 + 5a + 2a = 12

Combine like terms: 5a + 2a = 7a
1 + 7a = 12

Solving
1 + 7a = 12

Solving for variable 'a'.

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

Add '-1' to each side of the equation.
1 + -1 + 7a = 12 + -1

Combine like terms: 1 + -1 = 0
0 + 7a = 12 + -1
7a = 12 + -1

Combine like terms: 12 + -1 = 11
7a = 11

Divide each side by '7'.
a = 1.571428571

Simplifying
a = 1.571428571

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