To use the elimination method, you can add the two equations in a system of equations to eliminate one of the variables. Add the two equations.

{−9x+y=10
10x−y=−9

What is the resulting equation?

A 0 + 2y = 10 + 2, y = , 1

B x + 0 = 1x, + 0 = 1

C x + 0 = 19x, + 0 = 19

D 19x + 2y = 19

P. S its not C pls help asap

x=1 y=19

Step-by-step explanation:

Let's solve your system by elimination.

−9x+y=10; 10x−y=−9

−9x+y=10

10x−y=−9

Add these equations to eliminate y:

x=1

Then solve x=1 for x:

x=1

Now that we've found x let's plug it back in to solve for y.

Write down an original equation:

−9x+y=10

Substitute1forxin−9x+y=10:

(−9)(1)+y=10

y−9=10(Simplify both sides of the equation)

y−9+9=10+9(Add 9 to both sides)

y=19

Hope this helps, I don't really get the answer choices though

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.