Register
3x-5y=7, x=2y+4 solve by system of equation
102k views
4 votes
3x-5y=7, x=2y+4 solve by system of equation

User Andrux
by
7.8k points

1 Answer

3 votes
3x-5y=7, x=2y+4

substitute x=2y+4 into 3x-5y=7

3x-5y=7
3(2y+4)-5y=7
6y + 12 - 5y = 7
y = -5

x=2y+4
x = 2(-5) + 4
x = -10 + 4
x = -6

answer
x = -6 and y = -5
User Zorkan Erkan
by
7.7k points
← Prev Question Next Question →

No related questions found

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?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
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!