Sign In
Ask Question
Guest
Mathematics
Yesterday, 14:38
18x-16y=-312 78x-16y=408
+2
Answers (
1
)
Hugo
Yesterday, 15:06
0
Elimination
multiply first equation by - 1 and add to 2nd
-18x+16y=312
78x-16y=408 +
60x+0y=720
60x=720
divide both sides by 60
x=12
sub back
18x-16y=-312
18 (12) - 16y=-312
216-16y=-312
-16y=-528
divide both sides by - 16
y=33
x=12
y=33
(x, y)
(12,33)
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“18x-16y=-312 78x-16y=408 ...”
in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Find the product: (2z-1) 2 A 4z^2+1 B 4z^2-4z+1 C 4z^2-1 D 4x^2+4z-1
Answers (1)
Sophia tas $146.32 imfer savings account. She has - 3212.19 in her checking account Which one of the following inequalities correctly compares the account values Choose 1 answer 146.22 < - 212.19 -212.13 < 146.
Answers (1)
How do you figure out basketball stats?
Answers (1)
It takes Joseph 1/3 of an hour to walk to the library 3/4 a mile away. What is his walking pace in miles per hour?
Answers (1)
Mrs. Ripley baked a pie for lunch, which she cut into 8 pieces. What percentage of the pie did Mrs. Ripley and her three friends eat if they each had one piece?
Answers (1)
New Questions in Mathematics
How do I find the surface area of a a triangular prisim
Answers (2)
4. Identify the conclusion of the following conditional: A number is divisible by 3 if the sum of the digits of the number is divisible by 3.
Answers (1)
Raya buys a van for £8500 plus VAT at 20% Raya pays a deposit for the van. She then pays the rest of the cost in 12 equal payments of £531.25 each month Find the ratio of the deposit Raya pays to the total of the 12 equal payments.
Answers (1)
A 16-fl oz bottle cost 2.00$ what is the unit cost
Answers (1)
0.8% of what number is 6
Answers (1)
Home
»
Mathematics
» 18x-16y=-312 78x-16y=408
Sign In
Sign Up
Forgot Password?