X-y=11
2x+y=19
add them
x-y=11
<u>2x+y=19 +</u>
3x+0y=30
3x=30
divide 3
x=10
sub baack
x-y=11
10-y=11
minus 10
-y=1
times -1
y=-1
(x,y)
(10,-1)
Step-by-step explanation:
12g=12(2/3g-1)+ 11
12g=24/3g-12+11
12g-24/3g=-1
12g-8g=-1
4g=-1
g=-1/4
B....................................................
