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

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


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

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

Combine like terms: 2a + 7a = 9a
-5 + 9a = 3(a + 1)

Reorder the terms:
-5 + 9a = 3(1 + a)
-5 + 9a = (1 * 3 + a * 3)
-5 + 9a = (3 + 3a)

Solving
-5 + 9a = 3 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-5 + 9a + -3a = 3 + 3a + -3a

Combine like terms: 9a + -3a = 6a
-5 + 6a = 3 + 3a + -3a

Combine like terms: 3a + -3a = 0
-5 + 6a = 3 + 0
-5 + 6a = 3

Add '5' to each side of the equation.
-5 + 5 + 6a = 3 + 5

Combine like terms: -5 + 5 = 0
0 + 6a = 3 + 5
6a = 3 + 5

Combine like terms: 3 + 5 = 8
6a = 8

Divide each side by '6'.
a = 1.333333333

Simplifying
a = 1.333333333

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