-149 would be your answer
Answer:
20
Step-by-step explanation:
(6x3=18) (6x1/3=2) (18+2=20)
The correct answer is d.We have the following system of linear equations:
(I)

(II)

Let's use the elimination method, then let's multiply the equation (1)

and subtracting (I) and (II):
(I)

∴

(I)

(II)

____________________
(III)

∴

We can find the value of x by substituting y either in (I) or (II). Thus, from (I):

∴

∴

∴

∴

Let's substitute the values of x and y into (I) and (2)
(I)

(II)

Finally the answer is:
The first one is <span>Equivalent and the second is nonequivalent</span>