Highschool Math

Simplifying

100

-2(7 + 8b)     Use b = 4

-78

200

6(-8w - 3)   Use w = 8

-402

300

9(-5r - 6 )   Use  r = 7

-369

400

6(8 - 9x)  use x= 9

-438

500

-5(4f + 7)     use f = 7

-175

2 step equations

100

6 = a/4 + 2 

16

200

9x - 7 = -7

0

300

2(n + 5 ) = -2

-6

400

8n + 7 = 31

3

500

144 = -12 (x +5 )

-17

Combine like terms

100

( 2x²  + 2) + (x + 4)

2x² + x + 6

200

3x + (x² +7x)

x² + 10x

300

(5x + 5x² ) + (3x² +3x + 7)

8x² + 8x =7

400

(x +5) + (3x + 7)

4x + 12

500

( 4x³ +x² + 3) - (5x² + x + 4)

4x³ - 4x² + x - 1

Pemdas

100

28 + 28 - 38 + ( 20 x 6) - 16

122

200

( 4 x 5 x 10 + 14 x 6) - 23

261

300

28 + 19 - 10 - 16 - (33 - 15)

35

400

1 + 27 x 9 x 10 x 7 - 19

16992

500

15 + 21 x 3 - 35 + (29 + 31)

103

Vocab

100

What is the x in the expression called

7x + 5

Variable 

200

What is the 12 in the expression called

12x + 7 

Coefficient 

300

What is the 7 in the expression 

12x + 7

Constant 

400

Is this an equation or expression 

7x + 5

Expression

500

What is the 2 in the expression called

3x² + 4

exponent