Question

I will be so thankful if you help me with these!!
MEDAL AND FAN WILL BE GIVEN OUT IF YOU HELP!!!
you can do one or all! just plz help!!! attachment below

Answer 1

google each property , and see which one matches....

Answer 2

what about the other two questions? do u know how to solve those?

Answer 3

yes.....

Answer 4

can u help?

Answer 5

for number 21- add 8.4 + 3.9

Answer 6

= 12.3

Answer 7

then subtract 9.5 from 12.3 = 2.8

Answer 8

2.8 is x?

Answer 9

yes...

Answer 10

ok and can u do the other one too?

Answer 11

hold on a sec...

Answer 12

it says x +6 divided by 3 is equal to -5+2x

Answer 13

since there are no options, we have to estimate....

Answer 14

Okay so on the first q for steps on 20
1. Distributive property, since it went from 3(a+5) to 3a+15
2. Commutative property, moving around #'s without regrouping

Answer 15

3. The Associative property, regrouping of the #'s
4. It would be simplification
5. Distributive property

Answer 16

Have any q's?

Answer 17

thanks so much for your help! if you dont mind can u help with q 22?

Answer 18

yes, one moment

Answer 19

both the variables should be the same right?

Answer 20

Before u move on to the next question, there r six slots to fill in and u only gave me 5...

Answer 21

Okay for # 22
1. Multiply both sides by 3
3(x+6)/3 = 3(2x-5)
makes the equation simpler by multiplying both sides by a constant

Answer 22

6+x = 3(2x-5)
Cancel out common term 3 in the numerator and denominator

Answer 23

distribute
x+6=6x-15

Answer 24

Subtract 6x from both sides
6-5x=-15
subtract 6 from both sides
-5x=-21
divide both sides of -5x=-21 by 5
-5x/5=-21/-5
x=-21/-5
x=21/5 or 4.2

Answer 25

he's right, 4.2 +6 divided by 3 = 3.4,
-5 +2[4.2] = 3.4
~sorry i didn't get it didnt remember how to solve it the way @Nanalew did.

Answer 26

Then on number 20, # 6, really isn't a step the equation is in its simplified form, so you could put simplified

Answer 27

Any more q's?

Answer 28

NOPE THANKS SO MUCH

Answer 29

no prob happy to help :)