Question

2r/5-1=3 please answer it ​

Answer 1

Answer:

2r/5 - 1 = 3

2r/5 = 3 + 1

2r/5 = 4

2r = 4*5

2r = 20

r = 20/2

r = 10

so, r = 10

Answer 2

Answer:

$\huge \frac{2r}{5} - 1 = 3 \\ \\ \huge\frac{2r}{5} = 3 + 1 \\ \\ \huge \frac{2r}{5} = 4 \\ \\ \huge r = 4 \div \frac{2}{5} \\ \\ \huge r= 4 \times \frac{5}{2} \\ \\ \huge \: r \: = 2 \times 5 \\ \\ \huge \boxed{ r = 10}$

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