Combine like terms.
- 2x - 14 = -3.- 1

combine -3-1

if you want to solve for x then you would move the -14 to the left buy adding 14 to both sides.

your equation there will be

then you will divide -2 on both sides

finally x will equal

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.