Question

Find the value of a : ( 3a + 2 ) / 5 = 4

Answer 1

Step-by-step explanation:

Equation is a identity if all its coefficients are equal to zero simultaneously

⇒a

2

−3a+2=0

⇒a=2,1

⇒a

2

−5a+6=0

⇒a

2

−4=0

⇒a=±2

⇒coefficients are equal to zero simultaneously when a=2

Therefore only one value of 'a' the equation is identity in x

Answer 2

Answer:

3a+2/5=4

3a +2 = 4*5

3a+2=20

3a=20-2

3a=18

a= 18/3

a= 6