1/4+1/2+x=-3/4
add the two fractions together
3/4+x=-3/4
subtract from the other side
x=-3/4-3/4
since subtracting a positive from a negative is the same as adding a negative to a negative you get:
-3/4+(-3/4)=-6/4
x=-6/4 and just simplify if told to.
