7-a=5

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Solution for 7-a=5 equation:


Simplifying
7 + -1a = 5

Solving
7 + -1a = 5

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + -1a = 5 + -7

Combine like terms: 7 + -7 = 0
0 + -1a = 5 + -7
-1a = 5 + -7

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

Divide each side by '-1'.
a = 2

Simplifying
a = 2

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