21b-15a=0

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Solution for 21b-15a=0 equation: 


Simplifying
21b + -15a = 0

Reorder the terms:
-15a + 21b = 0

Solving
-15a + 21b = 0

Solving for variable 'a'.

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

Add '-21b' to each side of the equation.
-15a + 21b + -21b = 0 + -21b

Combine like terms: 21b + -21b = 0
-15a + 0 = 0 + -21b
-15a = 0 + -21b
Remove the zero:
-15a = -21b

Divide each side by '-15'.
a = 1.4b

Simplifying
a = 1.4b

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