Question

Q17.
Expand and simplify 3(m + 4) – 2(4m + 1)​

Answer 1

Answer:

m=2

Step-by-step explanation:

3m+12 -( 8m +2)       - (On multiplying 3 with m+4 and 2 with 4m+1)

3m+12 - 8m - 2    - (On opening the bracket + sign gets changed)

On simplifying the equ., we will get

-5m +10

On putting -5m to LHS side - sign gets changed to +

5m = 10

m=2

Answer 2

Answer:

14 - 5m

Step-by-step explanation:

3(m+4) - 2(4m + 1)

Opening the brackets we get,

=3m + 12 - 8m + 2

Adding and Subtracting the like terms (3m -8m) and (12+2),

= (-5m) + 14

Rearranging,

= 14- 5m