Question

5(3b-3)-3(3b-7)=12. B=?​

Answer 1

Answer:

b=1

Step-by-step explanation:

5(3b-3)-3(3b-7)=12

or, 15b-15-9b+21=12

or, 6b+6=12

or, 6b=6

or, b=1

Answer 2

Answer:

Given:

5(3b-3)-3(3b-7)=12.

To find: The value of b

Proof :

= 5(3b-3)-3(3b-7)=12.

⇒ 5(3b) - (5)(3) -3(3b) + (-3)(-7) = 12

⇒ 15b- 15 -9b + 21= 12

⇒ 15b-9b+21-15 = 12

⇒ 6b+ 6 = 12

⇒ 6(b+1) = 12

⇒ b+1 = $\frac{12}{6}$

⇒ b+1 = 2

⇒ b= 2-1

⇒ b= 1

Hence, the value of b= 1

Hope you got that.

Thank You.