Y=2x-3y+9
find the value of x

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?