7-3a=22

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Solution for 7-3a=22 equation: 


Simplifying
7 + -3a = 22

Solving
7 + -3a = 22

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 + -3a = 22 + -7

Combine like terms: 7 + -7 = 0
0 + -3a = 22 + -7
-3a = 22 + -7

Combine like terms: 22 + -7 = 15
-3a = 15

Divide each side by '-3'.
a = -5

Simplifying
a = -5

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