Adding Positive and Negative Numbers
-6 + (-4) =
-10
5 - 9=
-4
2(-2a)
-4a
y + 7= 4
y= -3
l -4 l
4
5 + (-3)=
2
-6 - 4=
-10
(a + b)(-3)
-3a - 3b
2x + 4x = 24
x= 4
- l -6 l
-6
-13 + 4=
-9
5 - (-8)=
13
-4(9 - x)=
-36 + 4x
2y - 7y = -15
y= 3
7 + l -4 l =
11
-23 + (-22)=
-45
-8 - (-9)=
1
Solve for x.
x+11 = 2(x-1)
x= 13
3y + 4 = 2y
y= -4
-l 3 l + l -2 l
-1
-20 + 33=
13
-14 - 18=
-32
Solve for X.
3(x-1) = 2x +8
x= 11
6y + 4 = 4y
y= -2
-l 6 l + l -6 l
0