Here, I'll do the first one for you.
When they are talking about a number, use "x".
Since it says twice a number, you say 2x. Or 3x for three times the number
2x+12=3x-31
Then use algebra to find x. Get the numbers on one side and all the x's on the other.
2x+12+31=3x-31+31
2x+43-2x=3x-2x
x=43
Now do the rest on your own!
I want to say A bit that's probably not right. try it
Answer:
$6.00 for 5 apples
Step-by-step explanation:
$5.00/4= $1.25 per apple
$6.00/5= $1.20 per apple
5¢ cheaper
Do 19 x 6 x 2 = 228
then 28 x 19 x 2 = 1064
then 28 x 6 x 2 = 336
<span>then do 228 + 1064 + 336 = 1628</span>
