Answer:
I'll do 15 through 19
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