The sum of two numbers is −28. Their difference is 122. Find the numbers.
Answers
Answered by
0
Step-by-step explanation:
let 1 no. be a and other be b
a+b=-28 equation 1
a-b=122 equation 2
add both equation
2a=94
a=47
b=-28-47=-75
Answered by
0
Answer-
Let two required numbers be a and b.
Sum of two numbers= -28
a + b= -28 ---(1)
Difference of two numbers= 122
a - b= 122 ---(2)
Adding eq. 1 and eq. 2,
a + b + a - b= -28 + 122 (Elimination method)
(+b and -b will cancel each other)
2a = 94
a = 94 ÷ 2
a = 47
Put value of a in eq. 1
47 + b = -28
b = -28 - 47
b= -75
∴ Required two numbers are: 47 and -75
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