30=21a

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Solution for 30=21a equation:


Simplifying
30 = 21a

Solving
30 = 21a

Solving for variable 'a'.

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

Add '-21a' to each side of the equation.
30 + -21a = 21a + -21a

Combine like terms: 21a + -21a = 0
30 + -21a = 0

Add '-30' to each side of the equation.
30 + -30 + -21a = 0 + -30

Combine like terms: 30 + -30 = 0
0 + -21a = 0 + -30
-21a = 0 + -30

Combine like terms: 0 + -30 = -30
-21a = -30

Divide each side by '-21'.
a = 1.428571429

Simplifying
a = 1.428571429

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