11-a=7

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Solution for 11-a=7 equation: 


Simplifying
11 + -1a = 7

Solving
11 + -1a = 7

Solving for variable 'a'.

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

Add '-11' to each side of the equation.
11 + -11 + -1a = 7 + -11

Combine like terms: 11 + -11 = 0
0 + -1a = 7 + -11
-1a = 7 + -11

Combine like terms: 7 + -11 = -4
-1a = -4

Divide each side by '-1'.
a = 4

Simplifying
a = 4

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