Answer:
Let's solve for x.
2x−y=−13x−y
Step 1: Add 13x to both sides.
2x−y+13x=−13x−y+13x
15x−y=−y
Step 2: Add y to both sides.
15x−y+y=−y+y
15x=0
Step 3: Divide both sides by 15.
15x
15
=
0
15
x=0
Answer:
x=0
Step-by-step explanation:
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The degree of f(x) is 4. Also the leading coefficient is 1 and it is positive
So as x approaches infinity then y approaches infinity
as x approaches -infinity then y approaches infinity
The first and fourth graph goes up and it satisfies the above . so we ignore the second and third graph.
Now we check the x intercepts of the first graph
x intercepts of first graph is -4 and 2
Plug in -4 for x in f(x) and check whether we get 0


Now plug in 2 for x and check

So -4 and 2 are the x intercepts that satisfies f(x)
Hence first option is the graph of 
Answer:
-21m+28
Step-by-step explanation:

Hope this helps.
168/6 = 28
Tim can solve 28 problems in one minute.
You have to distribute the 3.
3*4x , 3*-5
12x - 15
Hope this helps :)