1 Step Equations
Solve for x:
x - 10 = 35
x = 45
Solve for n:
7n - 6 = 78
n = 12
Solve and graph the following inequality
x + 15 > 27
x > 12
Write and solve an equation.
For mowing the lawn Kali was given $10. She now has $19. How much money did she have to begin with?
x + 10 = 19
x = 9
If your inequality has a "less than or equal to sign" what kind of circle should you have on your number line? (open or closed)
closed
Solve for a:
4a = 60
a = 15
Solve for t:
3t + 4 = -14
t = -6
Solve and graph this inequality
p - 20 < 55
p < 75
How old is Ming if she will be 31 years old in 11 years?
x + 11 = 31
x = 20
What is the name of this symbol " > " ?
greater than
Solve for m:
-20 + m = 27
m = 47
Solve for z:
13 - 16z = -35
z = 3
42 > h + 15
h < 27
Write and solve an equation.
Melissa and her friend went out to dinner. If the total bill was $50 and Melissa paid $4 fewer than twice the amount her friend paid, how much did each girl pay?
2f - 4 + f = 50
3f - 4 = 50
f = 18
friend $18, Melissa $32
If x = 3, y = -4, and z = 2, evaluate the following expression:
z(2x - y)
2(2(3) - (-4))
20
Solve for b:
b/8 = -9
b = -72
Solve for g:
-10 = 4g + -26
g = 4
18d > 54
d > 3
Larry bought a sweater for $43. He spent 3 less than twice as much as he spent last year on a sweater. How much did Larry spend on a sweater last year?
2x - 3 = 43
x = 23
When solving an inequality or equation, what do we use to solve them?
Inverse operations
Solve for f:
f - (-16) = 11
f = -5
Solve for a:
-78 = 6 + 2a
a = -42
Solve and graph the following inequality.
n/9 > 52
n > 468
Jill has two more than half as many stars as Lisa. If Jill has 8 stars, how many stars does Lisa have?
1/2x + 2 = 8
x = 12
Name two major differences between equations and inequalities.
*Equations- equal sign *Inequalities- <, >
*Equations- one solution *Inequalities- infinite solutions