Question

What is the value of b in the equation 3b + 2(b - 1) =8

Answer 1

Answer:

b = 2

Step-by-step explanation:

In order to find the value of b, we have to isolate b on one side of equation first

So,

$3b+2(b-1)=8$

Multiplying 2 with b-1

$3b+2b-2=8\\5b-2=8$

Adding 2 on both sides

$5b-2+2=8+2\\5b=10$

Dividing by 5 on both sides

$\frac{5b}{5}=\frac{10}{5} \\b=2$

So the value of b is 2 ..

Answer 2

ANSWER

The value of b is 2

EXPLANATION

The given linear equation in b is

$3b + 2(b - 1) = 8$

We expand to get:

$3b + 2b - 2= 8$

We now group similar terms to obtain:

$3b + 2b = 8 + 2$

Combine the similar terms now to obtain:

$5b = 10$

Divide both sides by 5 to get:

$b = \frac{10}{5}$

This simplifies to:

$b = 2$