What is the solution to this system of equations? y = x - 20 x + y = 84

(52, 32)

Step-by-step explanation:

Given the 2 equations

y = x - 20 → (1)

x + y = 84 → (2)

Substitute y = x - 20 into (2)

x + x - 20 = 84, that is

2x - 20 = 84 (add 20 to both sides)

2x = 104 (divide both sides by 2)

x = 52

Substitute x = 52 into (1) for corresponding value of y

y = 52 - 20 = 32

Solution is (52, 32)