69+4a-6a=21

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Solution for 69+4a-6a=21 equation: 


Simplifying
69 + 4a + -6a = 21

Combine like terms: 4a + -6a = -2a
69 + -2a = 21

Solving
69 + -2a = 21

Solving for variable 'a'.

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

Add '-69' to each side of the equation.
69 + -69 + -2a = 21 + -69

Combine like terms: 69 + -69 = 0
0 + -2a = 21 + -69
-2a = 21 + -69

Combine like terms: 21 + -69 = -48
-2a = -48

Divide each side by '-2'.
a = 24

Simplifying
a = 24

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