Answer:
x=5
y=1
Step-by-step explanation:
3*5=15
5*1=5
15+5=20
Answer:
-2, -3
Step-by-step explanation:
-2*-3=6
-2+-3=-5
Answer:
8.275
Step-by-step explanation:
8.280 - 8.270 = 0.010
0.010/2 = 0.005
8.270 + 0.005 = 8.275
The expression is given by:

So we need to find an equivalent equation for this problem. Then, we will apply some mathematical rules:
Extracting the common factor 1/4, then:

Or extracting the common factor -1/4, then:

So, comparing these solutions with the answers about, there is no any answer that matches.