SOLUTION: If the sum of two numbers is 42. The second is 10 more than 3 times the first. Find the numbers. a. 12,30 b. 8,34 c. 12,22 d. 10,32

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: If the sum of two numbers is 42. The second is 10 more than 3 times the first. Find the numbers. a. 12,30 b. 8,34 c. 12,22 d. 10,32       Log On


   

Question 464623: If the sum of two numbers is 42. The second is 10 more than 3 times the first. Find the numbers.
a. 12,30
b. 8,34
c. 12,22
d. 10,32

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=42
y=3x+10
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x+3x+10=42
4x=32
x=8
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8+y=42
y=42-8
y=34
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8+34=42