Like terms
3x + 4x - 2x
5x
10 = 13 - 3
True
x + 14 = 56
x = 42
5x = 85
x = 17
2 angles in triangle add to 110, what is the missing angle?
180 - 110
= 60
7xy + 7yx
14xy or 14yx
1534 = 1000 + 500 + 30 + 4
True
99 = x - 23
x = 122
x/5 = 12
x = 60
123 = 140 + x - 17
x = 0
3x2 + 2x + a
x2 + 2x + a
x + 7 = x - 7
False
-19 + x = 11.5
x = 30.5
4x = 24
x = 6
x + 2y = 14
what is x if y = 5
x = 4
4a - 3b + 2a - 3b + 6b
6a
13 x 7 = (9 x 10) + 1
True (both equal 91)
33 - x = 34
x = -1
x/2 = 11.25
x = 22.5
x2=36
x = 6
2x2 + 3x3 - x2
x2 + 3x3
a + b + c + d = d + a + c + b
true
x - 1/2 = 1/4
x = 3/4
11x = - 22
x = -2
Draw the mar model of:
2x + 5 = 17.2
See whiteboard