how do you do this problem y over -6 +5=9 by step by step
\[\frac{ y }{ -6} +5=9\]
the answers are A.24 B.-24 C.78 D.-78
Hello! Welcome to OpenStudy! To do this, we need to isolate y on the left side of the equal sign. To start that, first we need to subtract 5 from both sides. Can you show me that?
so i subtract 5 from 9
Yep :)
so it would be like this \[\frac{ y }{ -6 }=4\]
\(\dfrac y{-6} + 5 - 5 = 9 - 5\) + 5 - 5 = 0 9 - 5 = 4 That gives us \(\dfrac y{-6} = 4\)
Good! You're ahead of me already haha :)
Now, we need to cancel out -6. We subtracted 5 to cancel out addition, so we divide by -6 to cancel the multiplication. Does that make sense?
Bruh, did you read what you wrote?
Whoops, my mind was a little backwards, we multiply by -6 to cancel the division
that does not make sense
so y =24
Close, don't forget there's a negative sign :)
i mean -24
Yep :3
lol thanks
can you help me out on one more please
Sure!
its 4(x+1)+8=24
Okay, for this one, let's distribute the 4 first
so you subtract 4 from both sides ?
Not really... Focus on the 4(x + 1). We need to multiply 4*x and 4*1
oh okay
so it would be 4x+5
So after doing that, we have 4x + 4 + 8 = 24. This will be easier if we combine the 4 + 8, giving 4x + 12 = 24.
its 4x+5+8=24
What is 4 * 1?
oh lol sorry
Anything multiplied by 1 is itself :)
It's fine
so it would be 4x+12=24
Yep :) Now this is just like the last one. How do we cancel the +12 on the left side?
so we subtract the 4 on both sides
We're not quite there yet, we need to cancel the 12 first
how do i do that
sorry i keep forgetting because my daughter keeps distracting me
Oh no! I'm so sorry! I went to go get my math book and got distracted. Basically, whenever we need to cancel something, we want to do that opposite of what is originally being done. If we're adding, subtract that amount; if we're subtracting, add that amount; if we're multiplying, divide by that number; if we're dividing, multiply by that number.
ok
so how do i cancel out the 12
@sleepyjess
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