Answer:
x=-18
Step-by-step explanation:
What you have do do is look at the word <em>difference. </em>
Difference means subtraction so you will subtract x and -37.
x-(-37)=19. You will then make the negative a positive and subtract 37 from both sides.
x=-18 is your answer.
36-40= -4
36 subtracted by 40 equals negative 4
-4
Its the last one because 10 times 1 is 10 and 0 plus 10 still gives you 10