Question

the solution shown for the equation is incorrect. What is the correct solution? what is the error -7(2-r) = 28 -14-7r=28 -7r=42 r=-6

Answer 1

The given solution to the equation -7(2-r) = 28 is incorrect. Here's how to solve the equation correctly:

-7(2-r) = 28

Distribute the -7 on the left side:

-14 + 7r = 28

Add 14 to both sides:

7r = 42

Divide both sides by 7:

r = 6

Therefore, the correct solution to the equation -7(2-r) = 28 is r = 6. The error in the given solution is that -7 was added to both sides of the equation, instead of adding 14 to both sides.