madysenrosefrank madysenrosefrank

15-05-2019
Physics

contestada

solve the system of equations
-4x + 11y =15
x=2y
x=
y=

someone help please!

Respuesta :

MathPhys MathPhys

15-05-2019

Answer:

x=10, y=5

Explanation:

-4x + 11y = 15

x = 2y

Use substitution:

-4(2y) + 11y = 15

-8y + 11y = 15

3y = 15

y = 5

Now find x:

x = 2y

x = 2(5)

x = 10

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