When adding/subtracting fractions you need a common denominator, but you already have one, which is x-3. So in general:
a/c-b/c=(a-b)/c so you just have:
(2x-6)/(x-3) now if you factor 2 from the numerator
2(x-3)/(x-3) the (x-3)s cancel out leaving
2
However! Note that division by zero is undefined, so x cannot equal 3. (because both original fractions had denominators of x-3)
What this all means is that that expression will equal 2 for all real values of x other than 3.
Answer:
Step-by-step explanation:
- Domain=(-∞,∞){x/x∈R}
- Range= -49/4,∞){y/y≥ -49/4}
(2/3) x -6= 18
2x/3 = 18+6
2x/3 = 24
2x = 24•3
X= 24•3/2
X= 12•3
X= 36
I gotchu.
<span>3x-9x+6=20-3x+4x
Combine like terms.
-6x+6=20+x
Bring x over to the left side.
-x -x
-7x+6=20
bring 6 to the right side.
-6 -6
-7x=14
Divide -7 on both sides to isolate x.
x= -2
CHECK
</span><span>3x-9x+6=20-3x+4x
-6(-2)+6=20+(-2)
18=18
ANSWER: x= -2</span>
She would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300.
I hope this answer helped you! If you have any further questions or concerns, feel free to ask! :)
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