Answer:
The value of the variable x is -2 and the value of the variable y is -7.
Step-by-step explanation:
The substitution method consists of:
- Solve for an unknown in one of the equations, which will be a function of the other unknown
.
- In the other equation that is not used, the same unknown is replaced by the expression obtained in step 1.
- Solve for the only remaining unknown, obtaining the numerical value of an unknown.
- Substitute the cleared unknown in step 3 for its numerical value in the equation obtained in step 1.
- Operate to obtain the numerical value of the other unknown.
In this case, you have the system of equations:

Isolating the variable y from the second equation:
y= -1 +3*x
Replacing this expression in the first equation:
2*x-3*( -1 +3*x)= 17
Solving:
2*x -3*(-1)-3*3*x= 17
2*x +3 -9*x= 17
2*x -9*x= 17 -3
(-7)*x= 14
x= 14÷(-7)
x= -2
Now, replacing the value of x in the expression y = -1 + 3 * x you get:
y= -1 +3*(-2)
Solving:
y= -1 -6
y= -7
So,<u><em> the value of the variable x is -2 and the value of the variable y is -7.</em></u>
Answer:
1. d = -6 2. n = -80
Step-by-step explanation:
If you divide 42 by -252 you get -6. And if you use your mental math you see that two negatives make a positive then you see it has to be negative and 80/4= 20 than -80/-4 = 20. Hope this helps, let me know if correct, and have a great day!!
Answer:
X- Intercepts: (-1,0) and (-3,0)
Y- Intercepts: (0,-6)
Vertex: (-2,2)
Maximum
Axis of Symmetry x=-2
I don't know what the roots/solutions/zeroes are
7. Domain: All real #
8. Range: y is less than or equal to 2
Step-by-step explanation:
Tell me if you need explanation
Use Ga_thMath(u) (brainly doesn't allow me to type it) To use the app u need to take a pic of the problem and then it will process it and you'll get ur answer ASAP(most of the time). Many questions have been asked before so search it on brainly.