SOLUTION: one no. is 40 more than another.find the no. if their sum is 50

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Question 1010423: one no. is 40 more than another.find the no. if their sum is 50
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

let one no. be x and another no. y
if x is 40 more than y, we have x=y%2B40...eq.1
if their sum is 50, we have:
x%2By=50....eq.2...substitute x from eq.1
y%2B40%2By=50......solve for y
2y%2B40=50
2y=50-40
2y=10
y=10%2F2
highlight%28y=5%29
go back to eq.1 and substitute 5 for y
x=5%2B40...eq.1
highlight%28x=45%29
so, your numbers are: highlight%285%29 and highlight%2845%29