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Determine what is the best method for solving each system, then solve the equation.
3x + y = 1
4x+y=-2

Respuesta :

reguser315
Addition/subtraction is probably the best method:

3x+y=1
4x+y=-2

Subtract them:

-x=1-(-2)
-x=3
x=-3

Plug in to find y:

3(-3)+y=1
-9+y=1
y=10

So the final answer is x=-3, y=10

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