Question

A)))
X+4y=5
2x+3y=5
B)))
7x+3y=20
5x+2y=14
C)))
2x+y=3
X+y=2
Ayydenme xfavor

Answer 1

A) 3x + 4y = 10
3x= 10 - 4y
X= 10/3 - 3y/3 + y/3
x= 3*3 + 1/3 -y + y/3
X= 3 + 1/3 -y + y/3
x= 3 -y ( y/3)

y/3 = 3 - y
y/3 + y = 3
y = 1/4