Order of Operation [ P E M D A S ]
Substitution
Properties
Solving One-Step Equations
Solving Two-Step Equation
100

(5+16)÷7-2=

1

100

-4x^2+3x-2

Variable: ____________

 X

100

8+6=6+8

Property:

Commutative Property of Addition

100

x+5=7

x=2

100

5b-5=5

b=2

200

3+22(1+8)=

39

200

-4x^2+3x-2

Coefficient

-4, +3

200

(3×9)×15=3×(9×15)

Property:

Associative Property of Multiplication

200

16=4y

y=4

200

3=-2c-17

c=-10

300

(6+3(2)2)÷2=

9

300

When x=-4; y=2

-3x^2y+4x

-112

300

8×0=0

Property:

0 Property of Multiplication
300

u/-28=0

u=0

300

7s-60=-74

s=-2

400

(5(16-5)-1)/((4^2)-7) =

6

400

When x=4; y=-3

(x^2 - 4y)/2

14

400

15y+0=15y

Property:

Additive Identity

400

y/40=-1

y=-40

400

12-y/3=-2

42

500

(8^2-2^5)÷(24÷6)+3^2 =

17

500

When y=2,

-y^2 =

(-y)^2 =

-4

+4

500

If xy=x, What's y?

1

500

5/2x=20

x=8

500

 When 9 is subtracted from 5 times a number, the result is 31.

5x-9=31

x=8

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