Question

solve the following equation and check you result in each case 3m is to 21​

Answer 1

Answer:

I have to already explanation

Explanation:

lm=7

Step-by-step explanation:

3m=21

m= 21/3

=7

verify

m=7

3(7) = 21

so, M = 7

Answer 2

Explanation:

3m+2(m+2)=20−(2m−5)

⇒  3m+2m+4=20−2m+5

⇒  5m+4=25−2m

⇒  5m+2m=25−4

⇒  7m=21

∴  m=

7

21

∴  m=3,