Question

3(x+7)-4=7x-1 solve ​

Answer 1

Answer:

3( x + 7 ) - 4 = 7x - 1

3x + 21 - 4 = 7x - 1

21 - 4 + 1 = 4x

18 = 4x

x = 18 / 4

x = 9 / 2

x = 4.5

hope it helps

Answer 2

Answer:

=> The value of x is $\frac{9}{2} .$

Step-by-step explanation:

Given that:-

$3(x+7)-4=7x-1$

To find:- The value of the expression:

Here we will use the transposition method.

We have to follow these steps:-

( i ) First of all, we have to identify the variables and the constants.

( ii ) Get the variable to one side of the equation. Maintain equation balance while calculating.

( iii ) Then solve the expression of both sides by using various mathematical operations. Simplify both sides.

As we have,

=> $3(x+7)-4=7x-1$

Distributing the terms, we get

=> $3x+21-4=7x-1$

Subtract the numbers, we get

=> $3x+17=7x-1$

Subtract both sides by $17$,

=> $3x+17-17=7x-1-17$

=> $3x = 7x - 18$

Subtract both sides by $7x$, we get

=> $3x -7x= 7x - 18-7x$

=> $-4x = -18$

Divide both sides by $-4$,

=> $x = \frac{18}{4}$

Canceling the terms,

=> $x = \frac{9}{2}$

Hence, the required solution is $\frac{9}{2} .$