5a+2(a-1)=61

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Solution for 5a+2(a-1)=61 equation:


Simplifying
5a + 2(a + -1) = 61

Reorder the terms:
5a + 2(-1 + a) = 61
5a + (-1 * 2 + a * 2) = 61
5a + (-2 + 2a) = 61

Reorder the terms:
-2 + 5a + 2a = 61

Combine like terms: 5a + 2a = 7a
-2 + 7a = 61

Solving
-2 + 7a = 61

Solving for variable 'a'.

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

Add '2' to each side of the equation.
-2 + 2 + 7a = 61 + 2

Combine like terms: -2 + 2 = 0
0 + 7a = 61 + 2
7a = 61 + 2

Combine like terms: 61 + 2 = 63
7a = 63

Divide each side by '7'.
a = 9

Simplifying
a = 9

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