Please anybody help please
1 answer:
Answer:
x= -3 and y = 6
Step-by-step explanation:
so basically what you are trying to do is reduce into finding x and y
what you do is you want to find a number to multiply one of the equations in order to get the same x or y value does not matter which
so,...
we can do
either 20x or 15y
we will go with the smallest 15y
so for both equations multiply the whole thing by 5 for the first equation and by 3 for the second
5 x 5x+3y=3 --> 1
3 x 4x+5y=18 --> 2
we then get
25x+15y = 15 -->1
12x + 15y = 54 -->2
then now that you have the same Y values you can subtract ! which cancels out both the 15y
25x+15y = 15 -->1
- 12x + 15y = 54 -->2
13x =-39
so now x=-3 and all you have to do with x = -3 is sub this into either one of the equations that you started with !
x = -3
5(-3) +3y =3
-15 + 3y = 3
3y = 3+15
3y=18
y = 6!
You might be interested in
This will only have one solution because it does not deal with a quadratic. Then to isolate x you need to get the similar terms on different sides by subtracting or adding, Then divide both sides by the number next to x (coefficient).
Answer:
well 2^6 = 64 so 8x8, 32x2 and 16x4 would all be correct
Words over minutes.
Answer:2=c
Step-by-step explanation:
22=5c+3c-c+8
22-8=5c+3c-c+8-8
14=5c+3c-c+0
14=5c+3c-c
14=8c-2
14=7c
14/7=7c/7
2=c
Check answer by pluging 2 in for c.
5*2+3*2-2+8
=10+6-2+8
=16-2+8
=14+8
=22
The final answer is 2=c
