Download Unit 6 WS 4 - solv sys by subs part 2

ID: 1
Algebra 1B
Name___________________________________
Unit 6 Worksheet 4 - Solving Systems by Substitution - ptDate________________
2
Period____
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Solve each system by substitution.
1) −4 x + y = 2
5 x − y = −2
2) x + 5 y = 1
− x − 4 y = −1
3) 2 x + 3 y = 5
x+ y=0
4) x + 2 y = 1
5 x − 3 y = 18
5) 3 x + 5 y = −17
−3 x + y = 11
6) 5 x − 6 y = −9
3 x + y = 13
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Worksheet by Kuta Software LLC
Solve each system by graphing.
7) y = 8 x + 4
y=x−3
−5
−4
−3
−2
8) y = −5 x − 4
y=x+2
5
5
4
4
3
3
2
2
1
1
−1 0
−1
1
2
3
4
5
−4
−3
−2
−4
−3
−2
−1 0
−1
−2
−2
−3
−3
−4
−4
−5
−5
9) x = 4
x − 2 y = −4
−5
−5
1
2
3
4
5
1
2
3
4
5
10) x − 3 y = −9
8 x − 3 y = 12
5
5
4
4
3
3
2
2
1
1
−1 0
−1
1
2
3
4
5
−5
−4
−3
−2
−1 0
−1
−2
−2
−3
−3
−4
−4
−5
−5
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Worksheet by Kuta Software LLC
11) Sally has 6 jars each containing 13 marbles. She gives 8 marbles to her brother. Write an expression
that models the situation.
12) A bookcase has four shelves containing 20 books each. The librarian removes 15 books. Write an
expression that represents the number of books remaining.
13) The temperature on a winter morning is -8 degrees Fahrenheit. If the temperature rises 12 degrees then
falls 15 degrees in the evening, what is the temperature in the evening? Write a numeric expression,
then simplify.
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Worksheet by Kuta Software LLC