Honors Problem 3

Question

Write an equation involving inverse multiplication and inverse addition that has -5 as it's solution.

Answer 1

Inverse multiplication means to divide both sides of the equation by the same number.

Inverse addition means to subtract a number on both sides of the equation.

 

Using this fact, one equation we can have is

 

 

-4x + 6 = 26

 

 

Subtract 6 on both sides of the equation to isolate the x-term.

 

-4x = 20

 

 

Divide both sides of the equation by -4.

 

x = -5   ----> solution