Asked by Gaby
2x+5y=16
5x-2y=11
Please help me solve this system of equations!! I keep getting no solution and i do not know what I am doing wrong.
5x-2y=11
Please help me solve this system of equations!! I keep getting no solution and i do not know what I am doing wrong.
Answers
Answered by
Doublen
If you don't even know what one of the variables are, you can't solve the equasion. There IS no solution.
Answered by
Veronica
First you multiply the first equation by 5 and the second equation by -2.
You get:
10x+25 = 80
-10x+4y = -22
You cancel out the 10x. Therefore you add the two equations and you get
29y=58
y=2
You plug in 2 for y in any one of the original equations and you get:
x= 3
You get:
10x+25 = 80
-10x+4y = -22
You cancel out the 10x. Therefore you add the two equations and you get
29y=58
y=2
You plug in 2 for y in any one of the original equations and you get:
x= 3
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