Respuesta :

Let's say x is "number"

14) 2x-5=7

16) 6x-6=12

18) 2x+7=1

20) 8(n-3) or 8(3-n)

19) 9 + x/7=11

21) The product of 2 and the sum of 5 and t is 8

Hope this helped : )

meredith48034

Step-by-step explanation:

14. 2x -5 = 7

2x = 12

x = 6

16. 6x -6 = 12

6x = 18

x = 3

18. 2x + 7 = 1

2x = -6

x = -3

17. n/3 + 10= 12

n/3 = 2

n = 6

19. x/7 + 9 = 11

x/7 = 2

x = 14

21. 2 times the quantity of the sum of 5 and t is 8