Question

find the solution of 7x-9=16. solve the short question​

Answer 1

Answer:

x=257

Step-by-step explanation:

7x-9=16

7x-9=16.

⇒7x=16+9.

⇒7x=25⇒x=257.

Answer 2

GIVEN:-

7x-9 = 16 》equation.1

SOLUTION:-

7x-9 = 16

7x = 16+9

7x = 25

x = 25/7

CHECKING:-

》 "x" value substitute in equation.1

7(25/7)-9 = 16

25-9 = 16

16 = 16

LHS = RHS

Formulas or Rules:-

》When we got "x" value must know that is correct or not.

》By substituting the value in equation then that is satisfies it is correct if not we got wrong answer.

》So should follow checking process.