Respuesta :

Answer:

I'll do 15 through 19

Step-by-step explanation:

15.

4m +2 =18

subtract 2 from both side

4m=16

divide by 4 to solve for m

4/4m=16/4

m=4

17. 3t=2t +5

-2t from both sides

1t=5

t=5

19. -5x =3x- 24

subtract 3x from both sides

-8x= -24

divide by -8 to get x alone( Remember a negative divided by a negative is a positive)

x=3