Question

9⋅(7x−5)−7⋅(9x+5)=−80. ;-;

Answer 1

Ответ:

63х-45-63х-35=-80

-45-35=-80

-80=-80

Answer 2

Let's solve the equation step by step:

9(7x - 5) - 7(9x + 5) = -80

First, distribute the constants on the left side of the equation:

63x - 45 - 63x - 35 = -80

Now, combine like terms on the left side of the equation:

(63x - 63x) - (45 + 35) = -80

Since 63x and -63x cancel each other out, you're left with:

-80 = -80

This equation is an identity, meaning it's true for all values of x. In other words, there is no specific value of x that will make it false. So, there are infinitely many solutions to this equation.