3a+7=-1+a+a

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Solution for 3a+7=-1+a+a equation:


Simplifying
3a + 7 = -1 + a + a

Reorder the terms:
7 + 3a = -1 + a + a

Combine like terms: a + a = 2a
7 + 3a = -1 + 2a

Solving
7 + 3a = -1 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
7 + 3a + -2a = -1 + 2a + -2a

Combine like terms: 3a + -2a = 1a
7 + 1a = -1 + 2a + -2a

Combine like terms: 2a + -2a = 0
7 + 1a = -1 + 0
7 + 1a = -1

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

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

Combine like terms: -1 + -7 = -8
1a = -8

Divide each side by '1'.
a = -8

Simplifying
a = -8

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