-2=7+a

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Solution for -2=7+a equation:


Simplifying
-2 = 7 + a

Solving
-2 = 7 + a

Solving for variable 'a'.

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

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

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

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

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

Combine like terms: 7 + 2 = 9
-1a = 9

Divide each side by '-1'.
a = -9

Simplifying
a = -9

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