Answer:
x=1; y= -4
Step-by-step explanation:
4x+3y= -8 [1]
-x+y= -5 [2]
So here I'm gonna carry on with the elimination method because that is easier to explain with:
In the equation you have to make either x or y of the same value. I'm gonna start with y.
To make y the same, everything in [2] has to be multiplied with 3
so it becomes
4x+3y= -8
-3x+ 3y= -15
Now to cancel out y we have to subtract the equations:
4x+3y= -8
- (-3x+3y= -15) the brackets are just to indicate that the whole thing is being subtracted- remember to look at the signs
y is cancelled out
So now it will be:
7x = -8+15
7x=7
x=1
Now use the value of x to figure out y
4x+3y= -8
4(1)+ 3y= -8
3y= -8-4
y= -12/3
y= -4
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Answer:
I think the answer is C I'm not 100 percent sure but I hope it helps
Step-by-step explanation:
Um I think the first one is non proportional and the 2nd one is proportional y is 5 times x the 5 might be a negative
Answer:
o.a k
Step-by-step explanation:
X= -1
3 That is the answer if you need help with algebra I suggest math papa calculator