Question

a)-15+2x=-9 b)x/5+7=6 c)-5x+42=-8 d)x/4+2=5 e)6x+5=23

Answer 1

a)-15+2x=-9
2x=-9+15
2x=4
x=4/2      x= 2

b)x/5+7 = 6
x/12=6
x=12×6     x=72

c)-5x+42=-8
-5x= -8-42
-5x= -50  (-1)
5x=50         x=50/5      x=10

d)x/4+2 = 5
x/6 = 5  
x=5×6    x=30

e)6x+5=23
6x=23-5
6x=18     x=18/6       x=3