There are 7 ones on the left and only 2 on the right. The two sides need to be even, or balanced.
7 = 2 + r
r = 5
Hope this helps!
Answer:
9.75
Step-by-step explanation:
The answer would be (-3,-1/2)
9/10
4/10 + 2/10 + 3/10 = 9/10
4 + 2 + 3 = 9