One Step +/-
One Step x/÷
Two Step Part I
Two Step Part II
Random
100
x+12=9
x=-3
100
5r=20
r=4
100
4x+1=5
x=1
100

5c + 6 = 31

c=5
100

Inverse operation of addition is

Subtraction
200
-4=h-20
h=16
200
-54=-3y
y=18
200
3n+8=2
n=-2
200

-5x+9=24

x=-3
200

Inverse operation of subtraction is

Addition
300
2.9=r-6.4
r=9.3
300
a/8=-4
a=-32
300

1 = 2r + 9

r=-4
300

80 = 23 - 3v

v=-19
300

Inverse operation for multiplication is

Division
400
f+6=1.8
f=-4.2
400
9.2=c/-3
c=27.6
400

x/2 - 3 = 1

x=8
400

12 = a/36 + 17

a=-180
400

Inverse operation of division is

Multiplication
500
p-(3/8)=6/8
p=1 1/8
500
1.2h=-6
h=-5
500

12 - 4s = -12

s=6
500

x + 3x = -8

x=-2
500

In a two step equation what do you undo first addition/subtraction or multiplication/division?

addition/subtraction
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