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JulijaS [17]
2 years ago
11

Please explain how to do this and still get the answer 16. Thank you!

Mathematics
1 answer:
Kitty [74]2 years ago
5 0
(j-3)8=104
8j-24=104
8j=128
j=16

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Evaluate the expression when b= -2, b2 +6b +9
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Answer:

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Answer:

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Step-by-step explanation:

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Next, you can multiply equation (3) by 2 and subtract it to equation (2):

2[ x -y + z = 4]

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You multiply equation (5) by 2 and sum (5) with (4):

2[ -y  + z = 3]

<u>    3y  -2z= -7</u>

  y  + 0 = -1

Then y = -1

Next, you replace y=-1 in (5) to obtain z:

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Finally, you can replace z and y in the equation (3) to obtain x:

x - (-1) + (2) = 4

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