Question

-3 (3b + 1) -12 = 12

Answer 1

-3*(3b + 1) -12 = 12

-9b-3-12=12

-9b= 12+12+3

-9b= 27

b= 27: (-9)

b= -3

Ответ: b= -3

ПРОВЕРКА

-3*(3*(-3)+1)-12=12

12=12

Answer 2

Let's solve the equation step by step:

-3(3b + 1) - 12 = 12

First, distribute the -3 on the left side of the equation:

-9b - 3 - 12 = 12

Now, combine like terms on the left side of the equation:

-9b - 15 = 12

Next, isolate the variable b by adding 15 to both sides of the equation:

-9b = 12 + 15 -9b = 27

Now, divide both sides by -9 to solve for b:

b = 27 / -9 b = -3

So, the solution to the equation is b = -3.