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1. |
Solve the system of equations by using substitution. 
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A. |
(4, 9) |
B. |
(5, 11) |
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C. |
(3, 7) |
D. |
(1, 3) |
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Hint |
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2. |
Use substitution to solve the system of equations given below.
y = 2x
5x - y = -24 |
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A. |
(-8, -16) |
B. |
infinitely many solutions |
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C. |
(-4, -8) |
D. |
no solution |
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Hint |
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3. |
Use substitution to solve the system of equations.
5x + 5y = -30
2x - y = 15 |
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A. |
(3, -9) |
B. |
no solution |
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C. |
(21, 27) |
D. |
infinitely many solutions |
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Hint |
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4. |
Use substitution to solve the system of equations given by y = 2x and 5x + y = 7. |
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A. |
(1, 2) |
B. |
(2, 5) |
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C. |
(-2, -5) |
D. |
(-1, -2) |
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Hint |
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5. |
Use substitution to solve the system of equations given by x – 4y = 24 and 3x – 4y = 16. |
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A. |
(10, 3.5) |
B. |
(10, -3.5) |
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C. |
(-4, 7) |
D. |
(-4, -7) |
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Hint |
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