If 3m+2n=16 and m−2n=0, then what is the value of m?

m= 4

Step-by-step explanation:

3m +2n= 16 (1)

m -2n= 0 (2)

From (2):

m= 2n (3) (+2n on both sides)

subst. (3) into (1):

3(2n) +2n= 16

6n +2n= 16

8n= 16 (simplify)

n= 16 ÷8

n= 2

subst. n=2 into (3):

m= 2(2)

m= 4

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8