Question

9*(x-5)+4*(6-X)=3+3*(X+20)-2X

Answer 1

9*(x-5)+4*(6-X)=3+3*(X+20)-2X

9х-45+24-4х=3+3х+60-2х

5х-21=х+63

5х-х=63+21

4х=84

х=84/4

х=21

Answer 2

9*(x-5)+4*(6-x)=3+3*(x+20)-2x

9x-45+24-4x=3+3x+60-2x

9x-4x-3x+2x=3+60+45-24

4x=84

x=21

 

Проверка:

9*(21-5)+4*(6-21)=3+3*(21+20)-2*21

9*16+4*(-15)=3+3*41-2*21

144-60=3+123-42

84=84

Answer 3

To solve the equation 9*(x-5)+4*(6-x)=3+3*(x+20)-2x, we will simplify and then solve for x.

Let's start by simplifying both sides of the equation step by step:

9*(x-5) + 4*(6-x) = 3 + 3*(x+20) - 2x

Expanding the multiplication:

9x - 45 + 24 - 4x = 3 + 3x + 60 - 2x

Combining like terms:

(9x - 4x) + (24 - 45) = 3 + 3x - 2x + 60

5x - 21 = 3 + x + 60

Rearranging terms:

5x - x = 3 + 60 + 21

4x = 84

Dividing both sides by 4:

x = 84/4

Simplifying:

x = 21

Therefore, the solution to the equation 9*(x-5)+4*(6-x)=3+3*(x+20)-2x is x = 21.