Equations
Solve. Write answer as a mixed number is lowest terms.
-5(9x - 3)= 110
x=-2 1/9
Lin got a $50 gift card to an online music store. She uses the gift card to buy an album for $9.99. She also wants to use the gift card to buy some songs. Each song costs $1.29. Write an inequality that describes this situation, where s is the number of songs Lin wants to buy?
1.29s+9.99<=50
Simplify
-3x + 56 + 17x - 20
14x+36
Expand to write an equivalent expression.
-6(4x-6y)
-24x+36y
Factor with GCF to write an equivalent expression
48a-24
24(2a-1)
Solve
8+5x=68
x=12
At midnight, the temperature in a city was 15 degrees Celsius. The temperature was dropping at a steady rate of 3 degrees Celsius per hour.
Write an inequality that represents, ‘t’ the number of hours past midnight, when the temperature was colder than -5 degrees Celsius.
15-3t<-5
Simplify
-4t + 23 - 6t - 35 + 3t
-7t-12
Simplify
-2(4x+5)
-8x-10
Factor GCF
-8q+8
-8(q-1) OR 8(-q+1)
Solve
-4(x+2)=-28
x=5
Solve
15<3t-5
t>20/3
Simplify
16-12x+23x-5
11x+11
Simplify
-1/2(4x-6)
-2x+3
Factor
-25-5x
-5(-5+x) OR 5(-5-x)
$7.75
Solve and graph
-5x-15<20
x>-7
Simplify
8x-5-10x+3+1
-2x-1
Simplify
16-4(x-3)+x-1
-3x+27
Factor
30x+4
2(15x+2)
Four friends go to a theater. Each person buys a movie ticket for #11 and a soft drink. All together, they spend a total of $59. What is the cost of a drink?
$3.75
Solve and graph
-6(x-5)<18
x>2
Simplify
-2(4x+5)+6x-4
-2x-14
Simplify
-9-2(-3x-4)+x
7x-1
13x+5
Not possible
1(13x+5)