Answer:
(2, - 4 )
Step-by-step explanation:
Given the 2 equations
x + 2y = - 6 → (1)
3x + y = 2 → (2)
Multiplying (2) by - 2 and adding to (1) will eliminate the term in y
- 6x - 2y = - 4 → (3)
Add (1) and (3) term by term to eliminate y
- 5x = - 10 ( divide both sides by - 5 )
x = 2
Substitute x = 2 into either of the 2 equations and solve for y
Substituting into (1)
2 + 2y = - 6 ( subtract 2 from both sides )
2y = - 8 ( divide both sides by 2 )
y = - 4
Solution is (2, - 4 )
Answer:
If there are 2 quarters for every 3 nickels,
then there are 
quarters.
If there are 2 dimes for every quarter,
then there are 
dimes.
If the number of pennies and nickels together are equal to the number of dimes, then there are 
pennies.
It’s (-8z^2 +8x +4y -2z)
Hope it helps
34% is the correct answer
