2 answers:
Answer:
X=4, y=-1
Step-by-step explanation:
-3x+10y=2 multiple by 3
-3x+3y=9 multiply by 10
9x+30y=6
30x+30y=90
Subtract equation 1 from 2
30x-9x+30y-30y=90-6
21x+0=84
21x=84
Divide both side by 21
X=4
Substitute 4 for x in equation 1
3x+10y=2
3(4)+10y=2
12+10y=2
10y=2-12
10y=-10
Divide both side by 10
Y=-1
Answer:
(-4,-1)
Step-by-step explanation:
-3x+10y=2
-3x+3y=9
-3x=2-10y
-3x=9-3y
2-10y=9-3y
2-9=10y-3y
7y=-7
y=-1
-3x+3(-1)=9
-3x-3=9
-3x=12
x=-4
You might be interested in
Answer:
1/35
Step-by-step explanation:
1/3 of 10 (of means multiply)
1/3 times 10 is 10/3
1/7 of 8/12=2/21
2/21 divided by 10/3
use keep change flip
2/21 divided by 10/3 equals 2/21* 3/10
1/35 is the answer
Answer:
in the pic
Step-by-step explanation:
answer A
.....
Answer:
47
Step-by-step explanation:
^
Answer: 50/110 simplified is 5/11
Step-by-step explanation:
50/110
50/10=5
110/10=11
5/110=5/11
