Solve for r
r=4
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6r-30=-2-r
Multiply both sides of the equation by 10, the least common multiple of 5,10.
6r-30+r=-2
Add r to both sides.
7r-30=-2
Combine 6r and r to get 7r.
7r=-2+30
Add 30 to both sides.
7r=28
Add -2 and 30 to get 28.
r=\frac{28}{7}
Divide both sides by 7.
r=4
Divide 28 by 7 to get 4.
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