Answer:
17 and 53.
Step-by-step explanation:
Let the two unknown numbers be x and y respectively.
Translating the word problem into an algebraic expression, we have;
x + y = 70 ...... equation 1
x - y = 36 ...... equation 2
From equation 1;
x = 70 - y ...... equation 3
Substituting eqn 3 into eqn 2, we have;
70 - y - y = 36
70 - 2y = 36
70 - 36 = 2y
2y = 34
y = 17
Next, we find x;
x = 70 - y
x = 70 - 17
x = 53
