Question

3(x+2)-5(1-x) simplify the following and find their value if x =3​

Answer 1

Answer:

3(3+2) -5(1-3)

3(5) -5(-2)

15+10

25

Answer 2

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

        Given data:- $3(x+2)-5(1-x).\ if\ x=3.$

        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,

        $\Rightarrow 3(x+2)-5(1-x)\\\Rightarrow 3x+6-5+5x\\\Rightarrow 8x+1.$

      Putting the value of $x$ we get,

        $=8x+1\\=8\times3+1\\=24+1\\=25.$

   Hence, the value will be $25.$