-2x-10y equals -12 and 3x plus y equals 4?

Answer 1

Treat it as a simultaneous equation question:

-2x-10y = -12

3x+y = 4

Multiply all terms in the bottom equation by 10 in order to eliminate y:

-2x-10y = -12

30x+10y = 40

Add both equations together:

28x+0 = 28

Divide both sides of the equation by 28 to find the value of x:

x = 1

Substitute the value of x into the original equations to find the value of y:

x = 1 and y = 1