10-10-2018
Mathematics

contestada

80 points)Show all your work plz!! Use the Substitution method to solve the system of equations. x + y = 20 30x + 25y = 550

Respuesta :

Aristar Aristar

10-10-2018

Answer:

Step-by-step explanation:

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

X = 10

Y= 10

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