X − 7y = 8 for x. and the choices are A x = −7y + 8
B x = −7y − 8
C x = 7y − 8
D x = 7y + 8

C is the correct answer

Sorry i really need my points

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.