Question

solve the following equtions by trail and error method (i) 2+y = 7 (ii) a-2 = 6 (iii) 5m = 15 (iv) 2n = 14​

Answer 1

Answer:

2+y=7

y=7-2

y=5

a-2=6

a=6+2

a=8

5m=15

m=15/5

m=3

2n=14

n=14/2

n=7

Answer 2

i) y = 7-2 = 5

ii) a = 6+2 = 8

iii) m = 15/5 = 3

iv) n = 14/2 = 7