28-11-2018
Mathematics

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Use substitution to solve the system of equations y= 2x+16 2x-7y=-64

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pankakeman9p5nti2 pankakeman9p5nti2

28-11-2018

Answer:

x=4

Step-by-step explanation:

We know:

y=2x+16

2x-7y=64

plug the first equation into the second:

2x-7(2x+16)=64

2x-14x+112=64

-12x=-48

x=4

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