-3=7-a

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Solution for -3=7-a equation:


Simplifying
-3 = 7 + -1a

Solving
-3 = 7 + -1a

Solving for variable 'a'.

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

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

Combine like terms: -1a + a = 0
-3 + a = 7 + 0
-3 + a = 7

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

Combine like terms: -3 + 3 = 0
0 + a = 7 + 3
a = 7 + 3

Combine like terms: 7 + 3 = 10
a = 10

Simplifying
a = 10

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