2-a=7

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Solution for 2-a=7 equation:


Simplifying
2 + -1a = 7

Solving
2 + -1a = 7

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 + -1a = 7 + -2

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

Combine like terms: 7 + -2 = 5
-1a = 5

Divide each side by '-1'.
a = -5

Simplifying
a = -5

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