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What property is illustrated by the equation 6 - 7 = 6 + (-7)
Additive Inverse
What property is illustrated by the equation 6 + 7 = 7 + 6
Commutative Property
What property is illustrated by the equation (6 + 7) + 8 = 6 + (7 + 8)
Associative Property
What property is illustrated by the equation 6(x + y) = 6x + 6y
Distributive Property
Simplify 5a - 6b + 4a + 3b
9a - 3b
3 - 5(a - 4)
23 - 5a
7(a + 8) - 5a + 4
2a + 60
3(a - 14) - 5(a + 12)
-2a - 102
Evaluate the expression using the values m = 7, r = 8, and t = 2. 4m + t
30
Write an algebraic expression for the word phrase. 12 more than (m) machines
m+12
A cell phone company charges $40 per month(m) plus a $35 activation fee. How much would the service cost for the first 2 months(m)?
$115
Sunny earns $12, per hour delivering cakes. She worked for x hours this week. Unfortunately, she was charged $15 for a late delivery on Tuesday. How much money did Sunny earn this week? Write your answer as an expression.
12x - 15
Marco's mom gave him d dollars for his allowance one week. He also earned $14.55 for his newspaper route that week. Write your answer as an expression.
14.55 + d
Sarah received $55, for her birthday. She used some of that money to buy 3 shirts priced at m dollars each. How much money does Sarah have left? Write your answer as an expression.
55 - 3m
A large cheese pizza costs $18. Each topping you add on costs $1.50. How much would it cost to get a large cheese pizza with c toppings added? Write your answer as an expression.
18 + 1.50c
(2x + 4) + (3x + 5)
5x + 9
