Exam
Maths Puzzle
Algebra
The difference between two numbers is -38. Two times the smaller number minus five times the larger number is -217. What are the numbers?
Read Solution (Total 3)
-
- Let x , y be the 2 numbers
x - y = -38
2y - 5x = -217
x= -38 + y
2y - 5(-38 + y) = -217
2y + 190 - 5y = -217
3y = 407
y = 407/3
x - 407/3 = -38
3x - 407 = -114
3x = 293
x=293/3
So
x = 293/3
y = 407/3
- 10 years agoHelpfull: Yes(14) No(0)
- let x and y are 2 numbers
x-y=-38 -----1
2x-5y=-217
1*2= 2x-2y=-76
3y=141
- 10 years agoHelpfull: Yes(0) No(0)
- let x and y are 2 numbers
x-y=-38 -----1
2x-5y=-217
1*2= 2x-2y=-76
3y=141
- 10 years agoHelpfull: Yes(0) No(0)
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