1-Step Equations
x + 16 = 38
x=22
4x + 5 = 17
x = 3
x + 23 > -11
x > -34
2x + 11 > 23
x > 6
How many solutions are there to an equation?
1
x - 8 = -11
x= -3
x/7 + 3 = 8
x=35
x - 6 < 23
x < 29
5x - 9 < 11
x < 4
What you do to one side, you must also do ...
To the other
-3x = 27
x = -9
2x+1/2 = 3/4
x = 1/8
16x > -48
x > -3
x/2 + 6 >= 13
x>= 14
When Graphing an inequality, how can you till which direction to graph your arrow?
As long as the variable is on the left, use the symbol as an arrow to point you in the correct direction.
x/5 = -4
x = -20
2(3x + 6) = 30
x = 3
x/-9 <= -4
x >= 36
-3x + 9 > 36
x < -9
When Graphing an inequality, what do you do to the bubble with all 4 symbols?
no line, no fill.
Line = Fill.
-7 + x = -15
x = -8
-4( 2x + 4) = -56
x=5
-11x < 132
x > -12
-5x - 12 > 23
x < -7
What are the 2 rules with inequalities that would require you to flip your symbol?
If the variable is on the right side and if you multiply or divide by a negative number.