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add/subtract
absolute value
cross multiplication
Vocabulary
Distributive Property
100

x-20=40

x=20

100

|-45|+x=30

case 1 -15

case 2 -75

100

6/8=1/x+5+3

x=10.6...

100

a+b=b+a

communitive property

100

3(9+19)

84

200

300-x=222

x=-78

200

|15x|+36=780

case 1 54.4

case 2 49.6

200

6/7=9x/8+9+4

x=2

200

9/1x1/9

Multiplicative inverse

200

6(20+15)

210

300

670-x=400

x=-270

300

|100|+98x=987

case 1 9.05

case 2 11.09

300

3/8=7x/8+19+20

x=2.517

300

3(5+8)

distributive property

300

10(8+14)

220

400

567-x=789

x=222

400

|19|+40x=67

case 1 -2.15

case 2 x=1.2

400

10/20=20x/3+5+9

x=2.352

400

One plus 3 times x equals 10

algebraic expression
400

15(15+14)

435

500

589-x=894

x=-305

500

|90|+75x=718

case 1 8.37

case 2 -10.77

500

15/40=37x/81+29+20

x=1.31

500

|-15|=15

absolute value

500

24(10+34)

1056