Respuesta :

Answer:

x = 0

Step-by-step explanation:

Perform the indicated multiplication.  We get:

20 - x = 5 + 15 + 21x

Combining like terms, we get:

0 = 21x, and so x must be 0.  

x = 0

Answer:

x = 0

Step-by-step explanation:

20 - x = 5 + 3( 5 + 7x )

To solve the above equation, we will have to follow the step below.

First, we need to open the bracket

20 - x = 5 + 15 + 21x

Then we need to collect like terms, collecting like terms implies that we will move the values with x variables to the right side and we will move all the constant to the left-side.

20 - 5 - 15 = 21 x + x

            0  = 22x

Divide both-side of the equation by 22 to get the bvalue of x

0/22 = 22x/22

0 = x

Therefore x = 0