Question

(7x- 5) - 4 (2 +5x)=10(2-x)​

Answer 1

The solution is provided below :

It is given that,

$(7x - 5) - 4(2 + 5x) = 10(2 - x)$

To find : The value of x.

To find the value of x, the first step is to multiply and then remove the brackets. It is important to know that while removing the brackets, there will be changes in the sign.

When - and + sign will come together, it will result in - sign

$7x - 5 - 8 - 20x = 20 - 10x$

$7x - 20x + 10x = 20 + 5 + 8$

$7x - 10x = 33$

$- 3x = 33$

$x = \frac{ - 33}{3}$

$x = - 11$

Hence,

The value of x is -11