Question

a) x + y=14
4x +2y =48

b)x +y=25
x-y =13

c) x + y = 20
x - y = 8

d) x + y = -2
x - y = -8

e) x + y = 32
x - y = 18

Answer 1

A) x+y=14 > x= 14 - y

4(14 - y) +2y =48

56 - 4y + 2y = 48

- 4y + 2y = 56 - 48

2y = 8

y = 8/2

y = 4

X = 14 - 4  

X = 10