SOLUTION: This problem was given in a packet of problems from a teacher preparation program I am currently undertaking. If (-3.5, y) is a solution to the equation 2x-5y=10, what is the valu

Question 189434: This problem was given in a packet of problems from a teacher preparation program I am currently undertaking. If (-3.5, y) is a solution to the equation 2x-5y=10, what is the value of y? I have the answer in an answer key is -0.6, but do not know how to figure this one out, please help by showing your steps. Thank you, Ruby
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
If (-3.5, y) is a solution to the equation 2x-5y=10, what is the value of y?
.
The provided point (-3.5, y) gives the a value of 'x' as -3.5
Substitute that into the given formula and solve for y:
2x-5y=10
2(-3.5)-5y=10
(-7)-5y=10
Adding 7 to both sides:
-5y=17
Finally, dividing both sides by -5:
y = -17/5
y = -3.4
.
Check
your answer sheet -- are you sure you provided the right answer from the book?
RELATED QUESTIONS
I am currently working on my summer math packet and I am stuck on this word problem "If 5 (answered by mananth,MathLover1)

"Untitled," by Stephen Chen "I've often wondered how software is released and sold to... (answered by CPhill)

""Untitled," by Stephen Chen I've often wondered how software is released and sold to... (answered by CPhill)

My problem does not come from a textbook my teacher gave it to me in a packet...the... (answered by solver91311)

I am undertaking an Algebra 2 class and have not experienced any math since 1983 so any... (answered by Nate)

Hi. My teacher gave me a packet to do for a test next wed and i was wondering if you... (answered by Alan3354)

hi my teacher gave us this problem in a homework packet and i cant seem to solve it... (answered by Alan3354)

What are the values of x for which 8-x^2 < 5? I tried solving for x and got x <... (answered by jsmallt9)

Hi my name is jason and i dont have problems out of a text book but in a packet that my... (answered by Earlsdon)