(x - y) + (x + y) =
2x
-2x
-2y
2y
(-1)2 + (-1)3 + (-1)4 + (-1)5 =
0
1
-1
2
The value of x - y if x = -16 y = 4
-20
20
-12
12
4 x (-0.19) + 6 x (-0.19) =
0.190
-1.9
-0.19
19
0.5 x (-0.3) =
-1.5
-15
15
-0.15
(2x + 3y) - (x - 2y) =
x + 5y
x - 5y
-3x - 4y
2x - 3y
(x + y) - (x - y) =
(3x + y) - (2x + y) =
x
y
3x
The value of -(y - x), if x = -3 y = -5 is:
-8
8
-2
[11/9 x (-5)] + [7/9 x (-5)] =
-10
10
9
-5
