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6 votes
6 votes
4. What is the solution to the system

of equations below?
8x + 3y = -6
7x + y = -12

User Erwin Kalvelagen
by
2.2k points

1 Answer

13 votes
13 votes

Answer: x= −30/13 and y= 54/13

Step-by-step explanation: 8x + 3y= -6,7x + y= -12 7x+y+−7x= −12+−7x y=−7x−12 8x+3(−7x−12)=−6 −13x−36+36=−6+36 −13x/-13=30/-13 x= −30/13 y=−7x−12 y=−7(−30/13)−12 210/13−12/0 y=54/13 x= −30/13 and y= 54/13

User Tamir Vered
by
3.3k points