Question

-3a+9=-12 algebraic expressions class 6​

Answer 1

Answer:

7

Step-by-step explanation:

-3a = -12-9

-3a = -21

MINUS WILL BE CANCELLED WITH OTHER MINUS

a = 21/3 = 7

Answer 2

• As per the data given in the question, we have to find the value of the expression.

          Given data:-   $-3a+9=-12.$  

          To find:- Value of the expression.    

          Solution:-    

• Here, we will use the below following steps to find a solution using the transposition method:

• Step 1:- we will Identify the variables and constants in the given simple equation.

• Step 2:-then we Simplify the equation in LHS and RHS.

• Step 3:- Transpose or shift the term on the other side to solve the equation further simplest.

• Step 4:- Simplify the equation using arithmetic operation as required that is mentioned in rule 1 or rule 2 of linear equations.

• Step 5:- Then the result will be the solution for the given linear equation. By using the transposition method. we get,

                $-3a+9=-12\\-3 a=-12-9\\-3a=-21\\a=\frac{-21}{-3} \\a=7.$

          Hence  we will get the value $a=7.$