-7k+ar=r-8y

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Solution for -7k+ar=r-8y equation: 


Simplifying
-7k + ar = r + -8y

Reorder the terms:
ar + -7k = r + -8y

Solving
ar + -7k = r + -8y

Solving for variable 'a'.

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

Add '7k' to each side of the equation.
ar + -7k + 7k = r + 7k + -8y

Combine like terms: -7k + 7k = 0
ar + 0 = r + 7k + -8y
ar = r + 7k + -8y

Reorder the terms:
ar = 7k + r + -8y

Divide each side by 'r'.
a = 7kr-1 + 1 + -8r-1y

Simplifying
a = 7kr-1 + 1 + -8r-1y

Reorder the terms:
a = 1 + 7kr-1 + -8r-1y

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