Question

trial and error 7=x+4​

Answer 1

Step-by-step explanation:

Given

Let x=1, 1+4=5 Not equal to 7

Let x=2, 2+4=6 not equal to 7

Let x=3 ,3+4=7 = 7

Hence, x=3

Answer 2

Answer:

Given 7x=4

Let x=1,LHS=7(1)=7,RHS=4

As LHS



=RHS

Let x=

7

4

LHS=7(

7

4

)=4,RHS=4

LHS=RHS

By trial and error method

So x=

7

4

By balancing equation

7x=4⟹x=

7

4