Solve the following systems algebraically. Check either in the calculator or with algebra. 5) x = y - 8
x + 2y = 7
6)
2x+2y = 8
x - 3y = 0

Hassan bought a package of tofu. the temperature of the tofu was 14° celsius when hassan put the package into the freezer. he left the tofu in the freezer until it reached –19° celsius. which expressions explain how to find the change in temperature, in degrees celsius, of the package of tofu? select three that apply.