equations svp a)x+8=18 b)2×=-9 c)x-7=-3 d)4x+12=20 e)5x-15=5

a) x = 18 - 8
 x= 10

b) x= 9/2

c) x = -3 + 7
   x = 4

d)  4x = 20 -12
x = 8/4
x = 2

e) 5x = 5+15
 x = 20/5
x = 4