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Question 1 of 5: Solve each System by Substitution
$$-14x+2y=5,7x-y=8$$ $$-14x+2y=5$$$$7x-y=8$$
Next »
Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Thinking Emoji
A
$$(2,2)$$
B
$$(-2,-2)$$
C
no solution
D
$$(4,-8)$$
E
infinite solutions
Question 2 of 5: Solve each System by Substitution
$$4x-y=21,7x+6y=-2$$ $$4x-y=21$$$$7x+6y=-2$$
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Thinking Emoji
A
infinite solutions
B
$$(4,-5)$$
C
no solution
D
$$(-6,7)$$
E
$$(-2,-2)$$
Question 3 of 5: Solve each System by Substitution
$$6x+2y=8,-7x+2y=8$$ $$6x+2y=8$$$$-7x+2y=8$$
Next »
Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Thinking Emoji
A
$$(6,7)$$
B
$$(-5,-4)$$
C
no solution
D
$$(0,4)$$
E
infinite solutions
Question 4 of 5: Solve each System by Substitution
$$y=5,-x+2y=5$$ $$y=5$$$$-x+2y=5$$
Next »
Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Thinking Emoji
A
$$(-1,5)$$
B
$$(-5,5)$$
C
$$(5,5)$$
D
no solution
E
infinite solutions
Question 5 of 5: Solve each System by Substitution
$$-4x+7y=15,8x+8y=-8$$ $$-4x+7y=15$$$$8x+8y=-8$$
Finish »
Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Thinking Emoji
A
$$(-2,1)$$
B
$$(9,-3)$$
C
no solution
D
$$(-5,-5)$$
E
infinite solutions

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