Simplifying Expressions (7.EE.1)
Simplify:
7.8c+6p-3.4c+4.3p-10
4.4c+10.3p-10
Combine like terms:
3a +4 +6a -12
9a-8
4y +6= 18
y=3
(subtract 6 then divide by 4)
Solve if a=9
3a-2
25
A mom bought her kids 3 cartons of milk for $1.25 each and 6 doughnuts. The total cost was $6.93. How much was each doughnut?
$0.53
Simplify:
5(2c-5)
Distribute the following expression:
2.5 (6c+4)
15c+10
0.5b -6=20
b=52
(add 6, divide by 0.5 or multiply by 2)
Solve if m= -2.5
92-4m
102
Xavier needs to bike a minimum of 80 miles this week. If he has already biked 14 miles this week, then how many miles should he bike on each of the 6 remaining days this week?
11
Simplify:
5(b+6)-3b
2b+30
(13y+4) - (2y -6)
11y +10
b/4 + 1.2=15
b=55.2
(subtract 1.2 then multiply by 4)
Substitute and Solve:
5(1.5a-6) if a=6
15
A home improvement store advertises 60 square feet of flooring for $287.00 plus an $80.00 installation fee. How much does each square feet of flooring cost?
$6.12
Simplify:
9a-2(a-3)
7a+6
Distribute then combine like terms:
4a + 3(2a +4)
10a +12
2 (3a-4) +12= 19
a=2.5
solve if n = 4
5n - 9
11
Emily is encouraged to read more than 4 hours each week. It takes her 45 minutes to finish her first book. She divides the remainder of her time equally amongst the other six days. What is the minimum number of minutes she should read each day?
33 minutes
Simplify:
8y-1/2(4y-16)
6y+8
Double distribute and simplify by combining like terms:
4g + 6 (1.5g-3) -2 (g+2.5)
11g-23
1.3(6a-4) + 2(4a-2.5) = 21.4
a=2
Substitute and Solve for the following expression
6.2 [9r + (-2)] if r=2.5
127.1
The width of a rectangle is 5 less than 4 times its length. The perimeter is 70 feet. Find the dimensions of the rectangle.
width= 27 feet
length= 8 feet