What is x if x + 3y = 33 and y = 10?
Select the correct option:
A) 1 B) 2 C) 3 D) 4 E) 5
Substitute y by 10 in x + 3y = 33   x + 3(10) = 33   x + 30 = 33   If we substitute x by 3 in x + 30 = 33, we have 3 + 30= 
<gadget id="calculator">3 + 30</gadget>
<output>33</output>
33. Hence   x= 3 correct answer 3
<result>C</result>
What is x if x + 3y = 33 and y = 10?