Solve for x in the following system

6x + 6y = -2
y = -x

6.(q^9)^2 a. 2q^18 b. q^18 c. q^81 d.q^11 7.(6q^6)^-4 a. 6q^1296 b. 1296q^2 c. 1/1296q^24 d. 6q^-24 8. what is the value of 12x^-3 y^-1 for x = -1 and y = 5? a. -12/5 b.-10 c.-0 d.5/12

What is the solution to the division problem below x3+x2-11x+4/x+4

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left