No, because 5x4 equals 20 and 1x4 equals 4. And if add 20 plus 4 it equals 24. That is why he is wrong.
Solve the following system of equations by using the substitution method.
2x – 3y = -1
y = x – 1
<span>
(4, 3)|
</span>Solve the following system of equations by using the substitution method.
3y – 2x = 11
y + 2x = 9
<span>
Inconsistent|
</span>Solve the following system of equations by using the elimination method.
-2x + 9y = -13
6x – 3y = 15
<span>
(2, -1)
|
</span>Solve the following system of equations by using the elimination method.
x – y = 11
2x + y = 19
<span>
(10, -1)
|
</span>Solve the following system of equations using matrices.
4x + 5y = -7
3x – 6y = 24
<span>
(2, -3)
|
</span>Solve the following system of equations using matrices.
x + y = 1
2x + 5y = 4
<span>
(1/3, 2/3)
Here are the ones I can do.</span>
Answer:
y=-3
-3=-1.5x
you substitiue y value, then you divide both sides by -1.5 and you get 2 for x.
(2,-3)
y=4.5
4.5=-1.5x
you substitute y value, then again you divide both sides by -1.5 and you get 3.
(3,4.5)
y=6
6=-1.5x
same thing for this last one. then once again divide by -1.5 and you get -4.
(-4,6)
Step-by-step explanation:
