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kap26 [50]
3 years ago
14

Find two numbers with a sum of 20 and a difference of 14

Mathematics
1 answer:
sergey [27]3 years ago
4 0

Find two numbers with a sum of 20 and a difference of 14


Make two equations

X+Y=20

X-Y=14


Now add x since y cancels out and add 20+14 To end up with

2x=34


Now divide 2 both sides to get x alone

2x/2=34/2


X=17


Now substitute x answer to first equation and solve for y

17+y=20


Subtract 17 both sides

Y= 3

Your two numbers are

3 and 17

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