Elimintation x-2y=3 3x-y=2

y = -7/5

x = 1/5

Step-by-step explanation:

To solve by elimination, you need to cancel out one variable.

x - 2y = 3     =>    -3x + 6y = -9

3x - y = 2     =>     3x - y = 2      =>      5y = -7      =>      y = -7/5

Now, plug in the variable you found into one of the equations.

x - 2y = 3

x - 2(-7/5) = 3

x + 14/5 = 3

x = 1/5

i dont know sorry

step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.