EXPAND
3(x + 4)
3x + 12
8y - 20
4(2y-5)
4x+3y+2x+8
6x+3y+8
Sofia has 80 ounces of water in her bottle. She drinks 8 ounces every hour. When she has 16 ounces or less left, she refills it.
80-8x
Explain what the 80, -8, and x is
80 total water, drink 8 oz, x is hours
2x+10>16
x>3
5(2y - 3)
10y - 15
15a + 25b
5(3a+5b)
5x-3y+10x-6y
15x-9y
Ethan has $150 on a gift card. He spends $12 each time he shops. When he has $30 or less left, he stops using the card.
150-12x
Explain what the 150, -12, and x is
$150 total, spends 12 each, x number of shops
6x-3>21
x>4
-2(a + 6)
-2a - 12
9m - 3n
3(3m-n)
11p - 5q - 4p + 2q + 3 - 7
7p-3q-4
A candle starts with 60 inches of wax. It burns 5 inches each hour. When the candle has 10 inches or less left, it is thrown away.
60-5x
Explain what the 60, -5, and x means
60in total, 5in burns, x is hours
40-5x<10
x>6
12(2x+3y)
24x+36y
ab-cb
b(a-c)
-2x + 6y + 5x - 3y + 14 - 18
3x+3y-4
Noah has 75 minutes of game time left. Each round takes 9 minutes. When he has less than 30 minutes left, he stops playing.
75-9x
Explain what the 75, -9, and x mean
75 minutes total of game, each round takes 9min, x is number of rounds
150-12x<30
x>10
Another word for Expanding?
Distributing
3xy+xz
x(3y+z)
8m - 3n + 4m + n - 20 + 9
12m-2n-11
Ava has $40 on her lunch account. Each lunch costs $5. She can keep buying lunch as long as she has more than $10 left.
40-5x
Explain what the 40, -5, and x mean
$40 total, $5 per lunch, x is number of lunches
80-8x<16
x>8