14-7a=21

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Solution for 14-7a=21 equation: 


Simplifying
14 + -7a = 21

Solving
14 + -7a = 21

Solving for variable 'a'.

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

Add '-14' to each side of the equation.
14 + -14 + -7a = 21 + -14

Combine like terms: 14 + -14 = 0
0 + -7a = 21 + -14
-7a = 21 + -14

Combine like terms: 21 + -14 = 7
-7a = 7

Divide each side by '-7'.
a = -1

Simplifying
a = -1

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