Answer:
a:
-4 + (-7)
b:
-4+7
Step-by-step explanation:
here sorry it took so long
X+y+z=t
simple..
there are no other numbers that we have to follow like (1/2x or 3/4y) so it is just all together=t. the x, y, z will equal t because t is the total number of students taking three languages. And that number should be equivalent to x,y,z combined.
otherwise?? i d k<span />
The answer is x = 4 as it satisfies both inequalities :)
