Solve the system by substitution. у = x -2x + 4y = 16

Mathematics

2 answers:

Novosadov [1.4K]2 years ago

7 0

Answer:

Step-by-step explanation:

y = x

-2x + 4y = 16

-2x + 4x = 16

2x = 16

x = 8

y = 8

(8,8)

Umnica [9.8K]2 years ago

5 0

Answer:

Since y=x, then both variables must be the same.

-2x + 4y= 16

You have to have 16 on both sides

-2(8) + 4(8)=16

-16 + 32= 16

16=16

Step-by-step explanation:

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