Question

9x-2y=11 5x-2y=15 what is the solution to the above system of equations ASAP

Answer 1

9x - 2y = 11 ... (i)

5x - 2y = 15 ... (ii)

Subtracting equation (ii) from (i) we get;

4x + 0 = -4

4x=-4 , x = -1

Replacing x = -1 in equation (i) we get;

9(-1) - 2y = 11

-9 - 2y = 11

-2y = 20

y = 20 ÷ -2 = -10

The solution to the system of equations is (-1,-10).

Answer 2

Multiply the second row by -1

9x-2y=11
-5x+2y=-15

4x=-4
X=-1

9(-1)-2y=11

-9-2y=1
Add 9 to both sides
-2y=10
Y=-5

(-1,-5)