Which equation is an identity?

3(x - 1) = x + 2(x + 1) + 1

x-4x + 1) = -3(x + 1) + 1

2x+3 = 2(4x + 2) + 2

(6x – 3) = 3(x + 1) - x-2

What is not true about kl and mn? what is mn? (show your work)

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0