Eliminate y's
multiply second equaiton by 4
4x+4y=-4
add to first equation
3x-4y=-24
<u>4x+4y=-4 +</u>
7x+0y=-28
7x=-28
divide both sides by 7
x=-4
sub back
x+y=-1
-4+y=-1
add 4 to both sides
y=3
(x,y)
(-4,3)
D is answer
Answer:
8x+4 and 10x+4
Step-by-step explanation:
Using the distributive property, you times 8 by x and then 8 by one half: 8x & 8*1/2. 8x+4
You then do the same for 10(x+2/5): 10x and then 10 divided by 5 and times by 2. This leaves you with 10x+4.
I hope this helped. :)
Answer:
what they said ^^
Step-by-step explanation:
I did this so no one puts the incorrect answer
Answer:
Step-by-step explanation:
14.88 + x = 17.05
x = 17.05 - 14.88
x = 2.17
hope it helps
Answer:
8,500,000
Step-by-step explanation:
You round the 7 before the 4 to round it up to 5
Hope this is correct and helps x