Solving Systems of Linear Equations by Substitution Test

Question 1 of 5: Solve each System by Substitution

$$-2x-4y=-6,8x-5y=-18$$ $$-2x-4y=-6$$$$8x-5y=-18$$

Select the Correct Answer Below: Correct! Cool Emoji

Not Correct! Thinking Emoji

No Solution

$$(5,-3)$$

$$(-8,-2)$$

$$(-1,2)$$

$$(2,8)$$

Question 2 of 5: Solve each System by Substitution

$$4x-8y=4,2x-8y=10$$ $$4x-8y=4$$$$2x-8y=10$$

Select the Correct Answer Below: Correct! Cool Emoji

Not Correct! Thinking Emoji

$$(-5,-5)$$

No Solution

$$(-2,-3)$$

$$(-3,-2)$$

$$(8,5)$$

Question 3 of 5: Solve each System by Substitution

$$7x-y=14,20x-10y=-10$$ $$7x-y=14$$$$20x-10y=-10$$

Select the Correct Answer Below: Correct! Cool Emoji

Not Correct! Thinking Emoji

$$(3,7)$$

$$(7,7)$$

No Solution

$$(12,5)$$

$$(9,7)$$

Question 4 of 5: Solve each System by Substitution

$$-8x-8y=-8,-40x-20y=20$$ $$-8x-8y=-8$$$$-40x-20y=20$$

Select the Correct Answer Below: Correct! Cool Emoji

Not Correct! Thinking Emoji

$$(-2,3)$$

$$(5,3)$$

$$(7,-2)$$

$$(-1,-1)$$

$$(12,-9)$$

Question 5 of 5: Solve each System by Substitution

$$70x+70y=49,5x+5y=-8$$ $$70x+70y=49$$$$5x+5y=-8$$

Finish »

Select the Correct Answer Below: Correct! Cool Emoji

Not Correct! Thinking Emoji

$$(1,-4)$$

$$(5,3)$$

No Solution

$$(7,9)$$

$$(-2,-2)$$

Great Job! You Passed!

Better Luck Next Time...

Restart Quiz ↻

Review Lesson ↻

Next Lesson »