Register
What is the solution of the system? Use substitution. 3x + 2y = 7 y = –3x + 11 A. (6, -3) B. (6, -7) C. (-4 19/2) D. (5, -4)
27.2k views
1 vote
What is the solution of the system? Use substitution.

3x + 2y = 7
y = –3x + 11

A. (6, -3)
B. (6, -7)
C. (-4 19/2)
D. (5, -4)

User Thiago Loureiro
by
8.1k points

2 Answers

4 votes

i think it is A.... (6,-3)

User Dima Ti
by
7.8k points
7 votes
A) 3x + 2y = 7
B) 3x +y = + 11 multiplying B) by -1
B) -3x -y = -11 then adding equation A
A) 3x + 2y = 7
y = -4
x = 5
Answer is D


User Ray Toal
by
7.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Link Copied!