SOLUTION: x+y=450 x-20=2y

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Question 485714: x+y=450
x-20=2y
Answer by stfuenaira(10) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=450 (equation 1)
x-20=2y (equation 2)
Rearrange equation 2: x-2y=20 (equation 2)
Equation 1 - Equation 2:
3y=430
y=430/3
Substitute:
x+430/3=450
3x+430=1350
3x=920
x=920/3