2a+1=-7

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Solution for 2a+1=-7 equation: 


Simplifying
2a + 1 = -7

Reorder the terms:
1 + 2a = -7

Solving
1 + 2a = -7

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 + 2a = -7 + -1

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

Combine like terms: -7 + -1 = -8
2a = -8

Divide each side by '2'.
a = -4

Simplifying
a = -4

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