AdamTaurus

The weight is w

First you take half the weight of the bag of rice: 1/2w

Then you add 9 more pounds: $\frac{1}{2}w+9$

Wow, thanks for the extra effort, doing it on paper like that!!

Really appreciate it!

$-\frac{2}{5}x-9<\frac{9}{10}$

First, add 9 to both sides.

$-\frac{2}{5}x<\frac{9}{10}+9$

Simplify

$-\frac{2}{5}x<\frac{99}{10}$

Divide both sides by -2/5

$x<\frac{\frac{99}{10}}{-\frac{2}{5}}$

Anything divided by a fraction is the same as that number multiplied by the fraction's reciprocal.

$x<\frac{99}{10}*-\frac{5}{2}$

99*-5=-495

10*2=20

$x<\frac{-495}{20}$

Reduce.

$\frac{-495}{20}=\frac{-99}{4}$

That is the furthest it can simplify, so x>-99/4. If you want that in decimal form, here it is.

$\frac{-99}{4}=-24.75$

4-9(345)=567(77)2

By rule of PEMDAS, you have to multiply 345 by -9 before you subtract it from 4.

4-3105=567*77*2

Simplify

4-3105=87318

-3101=87318

This is not true, so this equation is not a function.

I already answered, but if you can't see it for some reason, the answer is A.

3x+5=5x-8

And if you want it solved, then here it is.

3x+5=5x-8

Add 8 to both sides.

3x+13=5x

Subtract 3x from both sides.

13=2x

Divide both sides by 2

$x=\frac{13}{2}=6.5$

Is it hectictar? idk lol

Your mystery number will be x.

5+3x=5x-8

If you only want the equation, there it is. If you want me to solve as well, just say the word.

I assume you want to solve for x. If that's not it, let me know and I'll do it how you ask.

$y=\frac{x}{3}-3$

First, you want to add 3 to both sides.

$y+3=\frac{x}{3}$

The multiply both sides by 3.

$x=3(y+3)$

Simplify.

$x=3y+9$

Well, I tried it and got an answer, but when I expanded the answer, it wasn't the original equation.

I got (x²+2x-1)(x²-4x+10)-28x+4.

I don't know what I did wrong though so that's what I was hoping you could help with. (That answer is in polynomial form, with -28x+4 being my remainder.)