Question

Determine the solution for 72 = 3(5b − 1).

b = 3.5
b = 4.6
b = 5
b = 14.2

Answer 1

B=5

Explanation:

72=3(5b-1)

72=15b-3

75=15b

B=5

Answer 2

b = 5

Explanation:

Given equation:

`72 = 3(5b-1)`

Divide both sides by 3:

`\implies (72)/(3) = (3(5b-1))/(3)`

`\implies 24=5b-1`

Add 1 to both sides:

`\implies 24+1=5b-1+1`

`\implies 25=5b`

Divide both sides by 5:

`\implies (25)/(5)=(5b)/(5)`

`\implies 5=b`

Solution

`\boxed{b=5}`