Question

SAY WHICH OF THE FOLLOWING ARE EQUATIONS AND WHICH OF THEM ARE EXPRESSION. FIND THE SOLUTION FOR EACH OF THE EQUATION. BY THE TRIAL AND ERROR METHOD. i) 9a =18

Answer 1

ANSWER:-

9a=18

Divide both sides of the equation by the same term

9

=

1

8

9

9

=

1

8

9

2

Simplify

Solution

=

2

Answer 2

Answer:

a =2

Step-by-step explanation:

If a =1 , then 9x1=9 is not equal to RHS 18

If a =2 , then 9x2=18 is equal to RHS 18

LHS=RHS

Hence, it is an equation.