Question

7x-7=21-5x solve the equation​

Answer 1

Answer:

7x-7=21-5x

=> 7x+5x=21+7

=>12x=28

=>x=28/12

=>x=2.3333333333 or keep it in fraction form.

Step-by-step explanation:

Answer 2

Answer:

=> The value of x is $\frac{7}{3} .$

Step-by-step explanation:

Given that:-

$7x-7=21-5x$

To find:- The value of the expression,

To solve this expression, we have to use the transposition method:  

As we have,

=> $7x-7=21-5x$

By rearranging the terms, we get

=> $7x-7=-5x+21$

Add both sides by $7$, we get

=> $7x-7+7=-5x+21+7$

Simplifying it further we get

=> $7x = -5x +28$

Now add both sides by $5x$,

=> $7x+5x = -5x +28+5x$

=> $12x = 28$

Divide both sides by $12$,

=> $x = \frac{28}{12}$

Canceling the terms, we get

=> $x = \frac{7}{3}$

Hence, the required solution is $\frac{7}{3} .$