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3 years ago

15

Solve the system by substitution 2x+2y= 50 y = 4x

1 answer:

Gnom [1K]3 years ago

6 0

Answer:

(5,20)

Step-by-step explanation:

2x + 2(4x) = 50

2x + 8x = 50

10x = 50

10x/10 = 50/10x

x = 5

2(5) + 2y = 50

10+ 2y = 50

-10. -10

---------------

2y = 40

2y/2 = 40/2

y = 20

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