Question

11. What is the value of y when 10y-5=20

Answer 1

5/2

Explanation:

The given equation to us is ,

`\implies 10y -5 = 20`

Add 5 both sides ,

`\implies 10y -5 +5 = 20 +5 \\`

`\implies 10y = 25`

Divide both sides by 10 ,

`\implies 10y / 10 = 25/ 10 \\`

`\implies \boxed{ y = (5)/(2)}`

Answer 2

y = 2.5

Explanation:

Given

10y - 5 = 20 ( add 5 to both sides )

10y = 25 ( divide both sides by 10 )

y = 2.5