She forgot about the final x at the end, because the first expression is 3x+6+x, and the second one is 3(x+2). The second one expands to 3x+6, but it doesn't have the final term at the end.
Also, 3 is not really a factor of x (technically it could be because x in unknown, but in terms of like terms and stuff it isn't) so you can't take a 3 out of x (unless you leave it as 1/3x I guess).
Anyway, yeah she forgot about the final x and therefore the factor she took out is incorrect anyway. She also could've simplified the first expression so that it became 4x + 6
Answer:
It is impossible to have two consecutive integers add up to an even number.
Step-by-step explanation:
x + (x + 1) = 132
2x + 1 = 132
2x = 132
x = 65.5
We can't get two consecutive integers to add up to an even number, as two consecutive integers will always be an odd number and an even number will always add up to an odd number, which 132 is not.
You can of course get two numbers that are 1 apart, and those would be 65.5 and 66.5, but those are not integers.
Answer:
60
Step-by-step explanation:
if its 20 rotation it goes 3 times it will be 60
20 20 20= <u>60</u>
(8, 9) will be the midpoint of the segment.
You can find this by applying the formula
(x1 + x2)/2 , (y1 + y2)/2
Answer:
so the difference is 84 - 63 = 21.
if we take 84 to be the 100%, what is 21 off of it in percentage?
Step-by-step explanation:
