Question

resolva estes sistemas.
a){2x+3y=14
{x-y=2
b){x+y=8
{5x+y=-8
c) {x-y=0
{2y-3x=1

me ajuda!!!

Answer 1

A)x=2+y
2.(2+y) + 3y= 14 x=2+2 x=4
+4 +2y +3y= 14
5y= 14-4
5y=10
y=2
B) y=8- x y=8+4 y=12
5x + 8-x=-8
4x=-16 x=-4
y=12-7
y=5
C)x=y x=-1
2y -3y=1
(-1)-y=1
y=-1