I’m just gonna go with it’s 2 separate math questions
so for:2y+7x=-5
(In my answers If there is a slash between two numbers it means it is a fraction)
X= - 2y/7-5/7
Y= - 7x/2-5/2
For 5y-7x=12
X= 5y/7-12/7
Y=7x/5+12/5
Hope I could help
Answer:
function A
Step-by-step explanation:
because that is the answer
The expressions D, E, and F represent a correct solution to the equation.
Step-by-step explanation:
Step 1:
First, we need to solve the given equation and find the value of x which satisfies the equation.


So the value of x for the given equation is -0.666.
Step 2:
Now we evaluate the values of the six given options to see which ones have an x value of -0.666.
A. 
B. 
C. 20 -6 -4 = 20 - 10 = 10.
D. 
E. 
F. 
So the options D, E, and F represent a correct solution to the given equation.
The correct answer would be
A) 80 because if we organize all the tests scores from smallest numbers to biggest, and cross out numbers from each side, and keep going till one is left, we see 80 is the last number in the middle. *below is a image of my work.