7b+ar=r-4c

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Solution for 7b+ar=r-4c equation:


Simplifying
7b + ar = r + -4c

Reorder the terms:
ar + 7b = r + -4c

Reorder the terms:
ar + 7b = -4c + r

Solving
ar + 7b = -4c + r

Solving for variable 'a'.

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

Add '-7b' to each side of the equation.
ar + 7b + -7b = -4c + -7b + r

Combine like terms: 7b + -7b = 0
ar + 0 = -4c + -7b + r
ar = -4c + -7b + r

Reorder the terms:
ar = -7b + -4c + r

Divide each side by 'r'.
a = -7br-1 + -4cr-1 + 1

Simplifying
a = -7br-1 + -4cr-1 + 1

Reorder the terms:
a = 1 + -7br-1 + -4cr-1

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