Question

Using the expression 7x = 3y, if y is 35, whatis x?A) 15B 21C 35D 105

Answer 1

A) 15

1) Considering that in the expression 7x = 3y the value of y has been given.

Then we can write it out:

7x = 3y Plug into that y =35

7x = 3 (35)

7x = 105 Divide both sides by 7

x = 15

2) Then, the answer is A) 15