What is

6n+7=-5

-2-4r=46

-6b-7=47

6n+7=-5

-7 - 7

6n=-12

:6 : 6

n=-2

follow these steps for the rest

1) 6n + 7 = - 5

6n = - 5 - 7 / /subtract 7 on both side

6n = - 12

6n/6 = - 12/6. / /Divide both side by 6 to solve for n.

n = - 2

2) - 2-4r = 46

-4r = 46+2 / /Add 2 on both side

-4r = 48

r = 48/-4 / /Divide both side by - 4

r = - 14

3) - 6b - 7 = 47

-6b = 47+7 / /Add 7 on both side

-6b = 54

b = 54/-6 / /Divide both side by - 6

b = - 9