Question

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

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

Answer 1

Answer:

B=5

Step-by-step explanation:

72=3(5b-1)

72=15b-3

75=15b

B=5

Answer 2

Answer:

b = 5

Step-by-step explanation:

Given equation:

$72 = 3(5b-1)$

Divide both sides by 3:

$\implies \dfrac{72}{3} = \dfrac{3(5b-1)}{3}$

$\implies 24=5b-1$

Add 1 to both sides:

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

$\implies 25=5b$

Divide both sides by 5:

$\implies \dfrac{25}{5}=\dfrac{5b}{5}$

$\implies 5=b$

Solution

$\boxed{b=5}$