Question

8x-7= 4x+9

What's the value of X.​

Answer 1

Answer:

Simplifying

8x + -7 = 4x + 9

Reorder the terms:

-7 + 8x = 4x + 9

Reorder the terms:

-7 + 8x = 9 + 4x

Solving

-7 + 8x = 9 + 4x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4x' to each side of the equation.

-7 + 8x + -4x = 9 + 4x + -4x

Combine like terms: 8x + -4x = 4x

-7 + 4x = 9 + 4x + -4x

Combine like terms: 4x + -4x = 0

-7 + 4x = 9 + 0

-7 + 4x = 9

Add '7' to each side of the equation.

-7 + 7 + 4x = 9 + 7

Combine like terms: -7 + 7 = 0

0 + 4x = 9 + 7

4x = 9 + 7

Combine like terms: 9 + 7 = 16

4x = 16

Divide each side by '4'.

x = 4

Simplifying

x = 4

Answer 2

Answer:

On simplifying  ($8x - 7 = 4x + 9$ ) we get value of $x$ as $4$ .

Step-by-step explanation:

To find : value of $x$

Given : $8x - 7 = 4x + 9$

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,

         $8x - 7 = 4x + 9 \\\\ 8x - 4x = 9 + 7\\\\ 4x = 16 \\\\x =\frac{16}{4}\\\\x = 4$