Question

can someone please help me i will fan and medal!!!

Answer 1

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Answer 2

To substitute the first equation into the second first we need to rewrite it in terms of y or x, I choose y.

y - 2x = 8
y - 2x + 2x = 8 + 2x
y = 2x + 8

Now we use this new definition of y and substitute in for the y in 16 + 4x = 2(y)

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

Now solve for x:

16 + 4x = 2( 2x + 8 )
16 + 4x = 4x + 16
0 = 0

This is true always, so the lines are the same line and there are B, an infinite number of solutions

Answer 3

thankyou so much

Answer 4

You welcome. c: