Solve each system of linear equations by adding or subtracting. 3x + 4y = 15 3x - y = 30 Enter the solution as an ordered pair. The solution is​

Respuesta :

Answer:

( 9, − 3 )

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

x = 9  and  y = − 3

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