SOLUTION: Solve these linear equations algebraically. State the coordinates 1) 8x+5=9 2x-5y=-4 2) 3x+5y=7 2x+4y=6

Question 1011631: Solve these linear equations algebraically. State the coordinates
1) 8x+5=9
2x-5y=-4

2) 3x+5y=7
2x+4y=6

Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

3x + 5y = 7   (1)
2x + 4y = 6   (2)

Multiply equation (1) by 2. Multiply the equation (2) by -3 and then add. 
You will get (after canceling like terms) a single equation for y:

10y - 12y = 14 - 18,   or

-2y = -4.

Hence, y = 2. Now from (1) you can find x =  =  =  =  = -1.

Answer. x = -1, y = 2.

I didn't solve the system #1, because I am not sure you wrote it correctly.

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