3r=(7r-8)

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Solution for 3r=(7r-8) equation:


Simplifying
3r = (7r + -8)

Reorder the terms:
3r = (-8 + 7r)

Remove parenthesis around (-8 + 7r)
3r = -8 + 7r

Solving
3r = -8 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
3r + -7r = -8 + 7r + -7r

Combine like terms: 3r + -7r = -4r
-4r = -8 + 7r + -7r

Combine like terms: 7r + -7r = 0
-4r = -8 + 0
-4r = -8

Divide each side by '-4'.
r = 2

Simplifying
r = 2

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