Register
3x - y = 7 6x - y = 10 When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated? A) 9x - 2y = 17 B) -3y = 24 C) -3x = -3 D) 9x = 17
53.8k views
3 votes
3x - y = 7

6x - y = 10
When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated?
A) 9x - 2y = 17
B) -3y = 24
C) -3x = -3
D) 9x = 17

User Klian
by
6.2k points

1 Answer

3 votes
3x - y = 7
6x - y = 10

if you subtract the second equation from the first to eliminate y you get:
3x-y-(6x-y)=7-10
3x-y-6x+y=-3
-3x=-3

so option C) -3x=-3 is the solution

User Villarrealized
by
6.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.7m questions

9.0m answers

Other Questions

What is the least common denominator of the four fractions 20 7/10 20 3/4 18 9/10 20 18/25
Paul bought a student discount card for the bus. The card allows him to buy daily bus passes for $1.60. After one month, Paul bought 23 passes and spent a total of $45.80. How much did he spend on the
Which of the following comparisons is false? 5° c is warmer than 5°f. 15° c is cooler than 60° f. 30° c is warmer than 90° f. 35° c is cooler than 100° f.
What is 0.12 expressed as a fraction in simplest form
How would you subtract $150.00 and 144.001 to have left over money
Link Copied!