7-4=2+blank

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Solution for 7-4=2+blank equation:


Simplifying
7 + -4 = 2 + blank

Combine like terms: 7 + -4 = 3
3 = 2 + blank

Solving
3 = 2 + abkln

Solving for variable 'a'.

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

Add '-1abkln' to each side of the equation.
3 + -1abkln = 2 + abkln + -1abkln

Combine like terms: abkln + -1abkln = 0
3 + -1abkln = 2 + 0
3 + -1abkln = 2

Add '-3' to each side of the equation.
3 + -3 + -1abkln = 2 + -3

Combine like terms: 3 + -3 = 0
0 + -1abkln = 2 + -3
-1abkln = 2 + -3

Combine like terms: 2 + -3 = -1
-1abkln = -1

Divide each side by '-1bkln'.
a = b-1k-1l-1n-1

Simplifying
a = b-1k-1l-1n-1

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