Question

the sum of a certain number and a second number is -42 . the first number minus the second number is 52 . find the numbers​

Answer 1

Step-by-step explanation:

let the first number be x and second number be y

given :

x + y = -42 (eqn no. i)

x - y = 52 (eqn no. ii)

adding eqn i & eqn ii

(x + y) + (x - y) = -42 + 52

x + y + x - y = 10

2x = 10

x = 5

putting value of x in eqn no. i

x + y = -42

5 + y = -42

y = -42 - 5

y = -47

hence the first number is 5 and second number is -47.