Answer:
I think the answer is C but I'm not 100% sure
d - 3 = (-8)
+3 +3
d = -5
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Answer:91
Step-by-step explanation:
If the best grade is 100,91 is it.
Is this the image? If so, sorry I can't do this lol
Solution
For this case we can do the following:
11y - 3x = 18
16y -3x = 33
We can multiply the first equation by -1 and we got:
-11y +3x =-18
16y -3x = 33
_______________
16y -11y = 33-18
5y = 15
y= 15/5 = 3
And then solving for x we got
x = -(18 -11*3)/ 3= -15/3 = 5
