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4r-2=r*21/2
We simplify the equation to the form, which is simple to understand
4r-2=r*21/2
Simplifying:
4r-2=+21r/2
Simplifying:
4r-2=+10.5r
We move all terms containing r to the left and all other terms to the right.
+4r-10.5r=+2
We simplify left and right side of the equation.
-6.5r=+2
We divide both sides of the equation by -6.5 to get r.
r=-0.307692307692
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