Question

what is the sum of 20 and the difference is 8

Answer 1

Answer:

Let first no. = X

Second no. = Y

A.T.Q

X + Y = 20 ______eq1

X - Y = 8__________eq2

eq1 + eq2

X + Y + X - Y = 20 + 8

2X = 28

X = 28÷2

X = 14

Put X = 14 in eq1 then

14 + Y = 20

Y = 20 - 14

Y = 6

So; X = 14 , Y = 6