Question

5 x + 10 is equal to 30 .what is the value of x solve by trial and error method​

Answer 1

Answer:

x=4

Step-by-step explanation:

we can use  trial and error method​ for solving this

lets take x=1

LHS=5*1+10

     =15(this is not equal to 30, thus x is not equal to1)

lets take x=2

LHS=5*2+10

     =20(this is not equal to 30, thus x is not equal to2)

lets take x=3

LHS=5*3+10

     =25(this is not equal to 30, thus x is not equal to 3)

lets take x=4

LHS=5*4+10

     =30

RHS=30

LHS=RHS

hence, x=4