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3 years ago

Use the substitution method to solve the system of equations. Choose the correct ordered pair.

Mathematics

2 answers:

daser333 [38]3 years ago

6 0

Answer:

Ordered pair (x,y) is (6,2)

Step-by-step explanation:

Use the substitution method to solve the system of equations.

$2x + 2y = 16$ -----> first equation

$y=x-4$ -------> second equation

Divide the first equation by 2

$2x + 2y = 16$ -----> first equation

$x+y=8$

Now solve for y, subtract x from both sides

$y=-x+4$

Now plug in -x+8 for y in second equation

$y=x-4$ -------> second equation

$-x+8=x-4$

Subtract x from both sides

$-2x+8=-4$

Subtract 8 on both sides

$-2x=-12$

Divide both sides by -2

x=6

now we plug in 6 for x in second equation

$y=x-4$ -------> second equation

$y=6-4$

y=2

Ordered pair (x,y) is (6,2)

goldenfox [79]3 years ago

4 0

Correct one is A(6,2)

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Step-by-step explanation:

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3 years ago

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Levart [38]

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Step-by-step explanation:

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