Answer:
B = 2
Explanation:
To solve the linear equation;
- 12 + 3B -1 = -5 - B
we will first collect like-term that is; we will make all the B variables to be on the left-hand side of the equation and all the constant to be on the right-hand side of the equation
( when -B cross over to the left-hand side of the equation, B becomes positive, when -12 and -1 cross over to the right-hand side of the equation, they become positive 12 and 1)
3B + B = -5 + 12 + 1
4B = 8
Divide both-side of the equation by 4 to get the value of B
4B/4 = 8/4
(on the left-hand side of the equation ,4 will cancel out 4 leaving us with B and 8 will be divided by 4 to give us 2)
B = 2
Therefore the solution to the linear of the equation is B = 2