Pre Algebra -CH3
Name
________________________
Date
________
Per
_______
Use the Distributive Property to simplify the following expressions:
2 points each, all or nothing
1.4(32)x___-12x + 8____ 2.437x____-12x - 28______ 3.29 2x___4x + 18________ 4.82xy____-8x –16y________ 5. 77y ____7y + 49_______ 6. 63x____6x –18 ________ 7. 84y___4y –8 ________ 8.24x_____-2x + 8 _______ 9.9(42)x____36x + 18______ 10.5()ab_____ -5a + 5b_______ Simplify each expression by gathering like terms. Also use the distributive property if necessary: 2 points each, all or nothing (you may get some credit for distributing correctly on #17-20) 11. 1197xx____20x –7 _______ 12. 124yy_____11y
–
4
______
13.
y
y
y
______
y
____________
14.
x
x
x
_____
-3x
________
15.
15
5
x
x
____
16x + 5
_____
16.
8
5
12
x
x
___
-13x + 12
_______
17.
7(3
5)
9
x
x
____
-12x + 35
________
18.
7
5
4
8
y
y
y
___
-6y + 20
________
19.
4
(5
7)
2
x
x
_____
-3x + -3
_______
20.
4(
1)
4
1
x
x
____
-3
_________
Solve the following equations.
Remember to gather like terms before isolating the variable.
3 pts each,
some partial credit may be given for proper steps shown with a small computational error (no integer errors!)
21.
6
14
38
x
____
x
= -4
________
22
.
3
5
10
x
___
x = 5
_______
23.
13
2
7
x
_____
x = 10
_________
24.
12
8
2
x
____
x
= 40
__________
25.
12