Multi Step Equations
20=2x
x=10
Solve for l.
A=lwh
A/(wh)
Solve for x.
-2x > 2
x < -1
The product of 3 and a number
3x
33=-12b+21
b=-1
Solve for w.
A=lwh
How does the greater than or equal sign look?
≥
3 is subtracted from a number
x-3
(-3/7)a-2=1
a=-7
Solve for A.
A=lwh
A=lwh
Solve for x.
x-3 ≥ 2
x ≥ 5
A number is subtracted by 3
x-3
2(3x-2)=26
x=5
Solve for y.
5x+2y = 7
y=(7-5x)/2
When does the inequality symbol change? (hint: Notes 3 cases)
1. Changing the numbers
2. Multiplication of negatives
3.Division of Negatives
3 is multiplied by the sum of a number and 4
3(x+4)
-12x+2=-10x+6
x=-2
Solve for x.
5x+2y = 7
x=(7-2y)/5
-2x-3 ≤ 5
x ≥ -4
5 is multiplied by the difference of a number and 7
5(x-7)