I have homework and i dont understand it its called "Solving Systems of Equations by Elimination." The problem im stuck on is

8x+y=-16

-3x+y=-5

I need the answer and how to do it.

0 lb is how many kg?

The perimeter of a movie screen is 82 meters. the screen is 14 meters tall. how wide is it?

Which is bigger 0.17meter or 0.165 meter

Can you simplify 49/84

Which equation best shows that 55 is a multiple of 11

Are all negative numbers integers

Remember the Peach Orchard at the Amusement Park? You are trying to conserve water, including the water used to irrigate the orchards. Currently, you are using two sprinkler systems, and you need to analyze these systems.

70% the rides are made for kids who are who are who r 48 inches taller if there are 80 rides in total how many are made for kids who are 48 inches and taller

Samara ran around the park loop that was 1/3 mile long. she ran around the loop nine times. samara says she ran 9/3 miles. her brother mike says she ran 3 miles. who is correct?

David wants to my have a board for $398.50. He has saved $350 so far. Stores offering a discount for 15% for the month of January. will David have enough money to buy the hoverboard during the month of January?