Pls help me with 3,4, and 5

#3 C. Subtract 11

#4 D. Subtract 10

#5 A. Add 9

Step-by-step explanation:

3) Subtract 11

25-11=14

42-11=31

42-11=31

50-11=39

59-11=48

4) Subtract 10

26-16=10

32-10=22

44-10=34

48-10=38

55-10=45

5) Add 9

10+9=19

22+9=31

23+9=32

24+9=33

46+9=55

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0