Question

the sum of two numbers is 137 and their difference is 43.find the numbers​

Answer 1

Answer:

X=90,y=47

Step-by-step explanation:

Let one numder be X

and another number be y

sum of 2 numbers=X+y=137 -1

difference of 2numbers=x-y=43 -2

By elemination method

X+y=137

X-y=43

2x=180

x=180/2

X=90

substitute X=90 in equation 1

90+y=137

y=137-90

y=47

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