If all entries of A and A^−1 are integers, prove that detA = 1 or −1.

Remmi wrote the equation of the line y=⅓(x+2) he solved for x and got x=3y-2 which of the following is an equivalent equation for x? a. x=y-11/3 b. x=y+7/3 c. x=3(y-⅔) d. x=3(y+⅔)

Answer this question, only if you know the answer. 30 points and brainliest!

Me n o w. i need t h i s. 10 points