Question

solve the following equations
7+5x-3x=21​

Answer 1

ANSWER:-

7+2x=21

2x=21-7

2x=14

x=14/2

x=7

Answer 2

Answer:

Value of $x$ is $7$ .

Step-by-step explanation:

To find : value of $x$

Given : $7+5x-3x=21$

Solution :

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

1. We will Identify the variables and constants in the given equation.
2. Then we differentiate the equation as LHS and RHS.
3. We take constants at RHS leaving variable at LHS.  
4. Simplify the equation using arithmetic operation as required to find the value of $x$
5. Then the result will be the solution for the given linear equation. By using the transposition method. we get,

        $7+5x-3x=21\\\\7 +2x = 21\\\\ 2x = 21-7\\\\2x = 14\\\\x = \frac{14}{2}\\\\ x = 7$