Solve this system algebraically.

7x - 2y = 4

5y + 3x = 10

{(-41/40, -41/58)}
{(41/40, 41/58)}
{(-40/41, -58/41)}
{(40/41, 58/41)}

Question

Solve this system algebraically.

7x - 2y = 4

5y + 3x = 10

{(-41/40, -41/58)}
{(41/40, 41/58)}
{(-40/41, -58/41)}
{(40/41, 58/41)}

hba · Answer

Did you try to solve it ?

hba · Answer

Its Just that you have to plug in the points :)

anonymous · Answer

im not sure wich one ithe right ones

hba · Answer

Well When you will plug in the values and it comes equal then you will know which one is right

anonymous · Answer

well i guess im on my own from here then

anonymous · Answer

{(-41/40, -41/58)} {(41/40, 41/58)} {(-40/41, -58/41)} {(40/41, 58/41)} are the answer choices.

callisto · Answer

For multiple choice (MC)question, putting the values into the given equations to see if it matches would be a way to do it. But knowing how to solve it is better - in case it's not a MC question.

For this question, I would prefer using elimination method.
7x - 2y = 4               --(1)
5y + 3x = 10    =>  3x + 5y = 10         --(2)

(1) x 5 + (2) x 2 <- to get y eliminated.
5 ( 7x - 2y)  + 2 ( 5y + 3x ) =  5 (4) + 2 ( 10 )      <- solve it,  you can get the value of x.

Then, sub the value of x into one of the given equations to get y.

anonymous · Answer

Well i guess im just gonna have tio get the problem wrong cause it gave me those as answer choices