Solve Algebraic Expressions 1
x + 18 = 54
x = 36
x + 27 = 81
x = 54
x > 10
x is greater than 10
is x = 5 a solution to x + 4 > 8? Explain!
Yes! 5 + 4 = 9
open circle at 4, shaded right
x > 4
7x = 84
x = 12
9x = 144
x = 16
x ≤ 6
x is less than or equal to 6
Is x = 6 a solution to 2x ≤ 12? Explain
closed circle at 4, shaded left
x ≤ 6
x ÷ 6 = 14
x = 84
x ÷ 8 = 19
x = 152
x + 4 ≥ 18
x + 4 is greater than or equal to 18
Is x = 3 a solution to x + 5 ≥ 10? Explain!
No! 3 + 5 = 8.
open circle at 9, shaded left
x < 9
x + 25 = 5 x 19
x = 70
6x + 18 = 174
x = 26
3x < 21
three times a number is less than 21
Which value is a solution to 4x < 20?
a.) 4. b.) 5 c.) 6
a.) 4
closed circle at 2, shaded right
x ≥ 2
8x = 6(32)
x = 24
(x/7) = 44
x = 308
(x/2) ≤ 9
a number divided by 2 is no more than 9
Which values are solutions to x + 3 ≤ 10?
a.) 6. b.) 7 c.) 8
a.) 6 and c.) 8
open circle at 12, shaded to the left
x < 12