Enter Title

Like terms

100

3x + 4x - 2x

5x

200

7xy + 7yx

14xy or 14yx

300

3x² + 2x + a

x² + 2x + a

400

4a - 3b + 2a - 3b + 6b

6a

500

2x² + 3x³ - x²

x² + 3x³

Equivalent?

100

10 = 13 - 3

True

200

1534 = 1000 + 500 + 30 + 4

True

300

x + 7 = x - 7

False

400

13 x 7 = (9 x 10) + 1

True (both equal 91)

500

a + b + c + d = d + a + c + b

true 

Add & subtract

100

x + 14 = 56

x = 42

200

99 = x - 23

x = 122

300

-19 + x = 11.5

x = 30.5

400

33 - x = 34

x = -1

500

x - 1/2 = 1/4

x = 3/4

Multiply & Divide

100

5x = 85

x = 17

200

x/5 = 12

x = 60

300

4x = 24

x = 6

400

x/2 = 11.25

x = 22.5

500

11x = - 22

x = -2

?

100

2 angles in triangle add to 110, what is the missing angle?

180 - 110

= 60

200

123 = 140 + x - 17

x = 0

300

x + 2y = 14

what is x if y = 5

x = 4

400

x²=36

x = 6

500

Draw the mar model of:

2x + 5 = 17.2

See whiteboard