Question

please answer this questions​

Answer 1

Answer:

1

Step-by-step explanation:

a) 2m - 7 = 5

= 2m = 5+7

2m = 12

m = 6

b)n = 3 1/2

c) 7(x+2) = 21

7x + 14 = 21

7x = 21-14

7x = 7

x = 1