Question

If 100 + x +2y = 200
and x is 20 then what is y

Answer 1

40

Explanation:

Step 1:

100 + x + 2y = 200 Equation

Step 2:

100 + 20 + 2y = 200 Substitute x

Step 3:

120 + 2y = 200 Add

Step 4:

2y = 80 Subtract 120 on both sides

Answer:

y = 40 Divide

Hope This Helps :)