How to solve 3x+y=6 and y=-3 using substation method
1 answer:
Answer:
x=3
Step-by-step explanation:
since they give you y this is a very simple problem
simply replace y with -3 and get
3x+(-3)=6
adding a negative number is the same as subtracting a positive number
3x-3=6
add 3 on both sides
3x=9
divide by 3 on both sides
x=3
You might be interested in
108 minutes because 50 percent of 240 is 120 so take 5 percent away and it is 108
6×11=66
11+66=77
so the first number is 11 and the second is 66. together their sum is 77.
Answer:
36 ft
Step-by-step explanation:
Answer:48
Step-by-step explanation:
9 times 6 is 54, then you subtract the 6 and get 48
Answer:
$28
Step-by-step explanation:
cp=20
mp=20%ofcp
=20/100*20
=8
now,
sp=mp+cp
=8+20
=28
