Question

x+y=5 5x-3y=17 método reduccion

Answer 1

x + y = 5
x = 5 - y

5x - 3y = 17
5(5 - y) - 3y = 17
25 - 5y - 3y = 17
8 = 8y
1 = y

x = 5 - y
y = 1
x = 4

y = 1
y = 4