Answer:
d) 
Step-by-step explanation:
b) 
This expression is not equivalent, as the original expression,
, has 9 multiplied to
instead of y. You can interchange values like this when it comes to addition, but not multiplication.
c) 
This expression is also not equivalent. After opening up the parentheses, it would again result in y being multiplied to
.

d) 
This expression is equivalent, as 9 and
are still being multiplied together and y is added to the product. We can actually rearrange this to look like the original expression:

I hope this helps!
Answer: a=2/5b + 1/5c (I may have answered your question but idk if I did)
Step 1: Add -4a to both sides.
9a−2b+−4a=4a+c+−4a
5a−2b=c
Step 2: Add 2b to both sides.
5a−2b+2b=c+2b
5a=2b+c
Step 3: Divide both sides by 5.
5a/5=2b+c/5
a=2/5b+1/5c
<span>sum of 9 and 3 = 12
</span><span>difference of 9 and 3 = 6
</span><span>the quotient when the sum of 9 and 3 is divided by the difference of 9 and 3:
12/6 = 2</span>
You must equal zero, so that way 2x can equal 2x
Answer:
y = 2/3x + 4/3
Step-by-step explanation:
Voy a suponer que necesitas resolver para y.
2x + 3y = 4
3y = -2x + 4
y = -2/3x + 4/3