0
5+3R = 5R-19bring all the variables to the left side (in this case it will be R)
remember when you bring numbers or variables the sign changes, if the variable or number is positive it shall change to negative and vise versa.
3R-5R= -19-5
-2R = -24
R= -24/-2= 12
checking:
5+3R = 5R-19
so now you substitute R to see if it equation is correct.
5+3(12)= 5(12)-19
5+36=60-19
41=41 SO CORRECT!
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