13.45 + 9.5 = 22.95
42.6 - 22.95 = 19.65
19.65 : 3 = 6.55m did he fence each day wednesday thursday & friday
The number is -2
-2 + 4 = 2
2 is 2 less than 4
X^1/2 or x to the 1/2 power
4 = y - 4
You need to add 4 on each side and you will get 8 which means that y is equal to 8.
4 = y - 4
+4 +4
8=y