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The sum of two number is 420.the second number is thrice the first. What is the biggest number?

The sum of two number is 420.the second number is thrice the first. What is the biggest number?

Asked by: Guest | Views: 29
Total answers/comments: 1
Guest [Entry]

"x - first number
3x - 2nd number

x + 3c = 420
4x = 420
x = 105 first number
3x = 315 2nd numbet"