Question

Consider the following formula: A = B + 3 (4 - C) If B equals 5 and C equals 2, what is the value of A?

Answer 1

B+3 (4-C) = A
B= 5 , C = 2

B+3 (4 - C) = A
step 1 ) 5+3 (4- 2) = A
step 2 : we will open the brackets)
5 + 12 - 6 = A (we multiplied 3 with 4 and -2 )
step 3 ) 17- 6 = A
step 4) 11 = A

verification :

LHS : (left hand side) 
B = 5 , C = 2
5 + 3 (4 - 2)
5 + 3 x 2
5 + 6 = 11

RHS : (right hand side)
A = 11

LHS = RHS
11 = 11
hence verified 

Answer 2

The value of A is 11.

Step-by-step explanation:

The given equation is A = B + 3(4 - C)

Also, it is given that the value of B = 5 and C = 2

Substituting the value of B and C in the equation, we obtain,

A = B + 3(4 - C)

A = 5 + 3(4 - 2)

First solving the terms in the bracket, we get,

A = 5 + 3(2)

Now 3 can be multiplied by 2, we get,

A = 5 + 6

Finally adding the numbers,

A = 11