SOLUTION: One number is two more than thrice another. Their sum is 30. Find the numbers

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Question 837700: One number is two more than thrice another. Their sum is 30. Find the numbers
Answer by jhunjiro(67) About Me  (Show Source):
You can put this solution on YOUR website!
x - first number
y - second number
x=2%2B3y eq.1
x%2By=30 eq.2
substitute:
%282%2B3y%29%2By=30
2%2B4y=30
4y=30-2
4y%2F4=28%2F4
y=7
substitute the value of y to eq.1
x=2%2B3%287%29
x=2%2B21
x=23
highlight+%28x=23%29
highlight+%28y=7%29