Question

8(3x-1)-9(5x-11)=91-21x

Answer 1

8(3х-1)-9(5х-11)=91-21х

24х-8-45х+99=91-21х

24х-45х+21х=91+8-99

0х=0

Ответ: бесконечное множество решений

Answer 2

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

8(3x - 1) - 9(5x - 11) = 91 - 21x

24x - 8 - 45x + 99 = 91 - 21x // Distribute the multiplication

-21x + 91 = 91 - 21x // Combine like terms and simplify

We are left with -21x + 91 = -21x + 91.

This means that the equation is an identity, which means that it is true for all values of x. In other words, any value of x that we plug into the equation will make it true.

Therefore, the solution to the equation is all real numbers.