Question

solve each of the following equations by trial and error method: i) 2x=8
ii) 4x-7=3x
iii) y-4=4
iv) 10p=100​

Answer 1

Answer:

1)2x=8

2x/2=8/2

x=4

2)4x-7=3x

4x-3x-7=0

x-7=0

x-7+7=7

x=7

3)y-4=4

y-4+4=4+4

y=8

4)10p=100

10p/10=100/10

p=10