Writing Expressions
a number plus 5
x + 8; x = -4
4
5x = 35
x = 7
Show x < 3
x - 7 < 15
x < 22
the product of 5 and a number
-4x; x = -4
16
x / -5 = 2
x = -10
How do you know when to do a closed circle and when to do an open circle when graphing inequalities?
-3 + x > 20
x > 23
eight less than twice a number
2x - 8
6x - 5 = 43
x = 8
Show x + 6 > 10
7x > -28
x > -4
the product of a number and 8, divided by 3
8n/3
3x - 4; x= 2.8
4.4
-2x + 4 = -16
x = 10
Show x/-5 < 3
x/-8 < -12
x > 96
the quotient of half a number and 5
1/2x / 5
- 15 ( 3 - x); x = -1
-60
x/3 - 2 = -10
x = -24
-6x + 2.1 < -2.1
x > 0.7