Adding Two-Step Equations
2x + 6 = 18
What is x = 6
-2x - 63 = 47
x=-55
When you multiply of divide by a negative number you must _____ the inequality sign?
Flip
5x + 2 < -8
x < -2
4x - 6 ≤ -10
x < -1
2x + 4 = 12
What is x = 4
4y - 9 = -45
y = -9
What is the first step in solving the equation 2x+7=15?
Subtract 7 from both sides
2f + 32 < 126
f < 47
3m - 2 > 7
m > 3
5x + 18 = 13
What is x = -1
4a - 7 = 33
a = 10
The inverse operation for multiplication is
Division
2x + 6 > 18
x > 6
Solve. 25 - 5r > -30
What is r < 11
3c + 5 = 23
4a - 4 = 20
a = 6
The inverse operation for addition is
Subtraction
-4x+2 > 18
x > -4
4x - 5 > 11
x > 4
3x + 5 = -14
X = -3
6x - 4 = 14
x = 3
What kind of dot would you use for the following symbol? <
Open or Closed dot?
Open
9 + 2x > 23
x > 6
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