The question mark is equal to -5 and if you need f than f is equal to -15
What are you supposed to be finding? Give More Information Plz. <span />
7+8*<span>3 to the second power </span>-2
7+72-2
79-2
77
You make an x= ... equation by moving 2y to the other side and /3 (in the first equation) then you fill in x into the second equation and you calculate y. If you have Y you fill it in in the first equation.