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vladimir2022 [97]
2 years ago
12

NEED HELP ASAP! GIVING BRAINLEST!

Mathematics
1 answer:
Andreas93 [3]2 years ago
3 0

Answer:

120

40/100*300

2/5*300

2*60

120

hope it helps!

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Can someone help me with this<br> 2x+4y+3z=6<br> x-2y+z=-5<br> -x-3y-2z=-7<br> solve for x,y,z
Flauer [41]

Answer:

x = -7 2/3, y = 1 1/3 and z = 5 1/3.

Step-by-step explanation:

2x+4y+3z=6    .....  1

x-2y+z=-5        ...... 2

-x-3y-2z=-7      .......3

Add equations 2 and 3 to eliminate x:

-5y - z = -12   .....4

Multiply equation 2 by - 2:

-2x + 4y  - 2z = 10

Add this to equation 1:

8y + z = 16   ........ 5

Now add equation 4 to equation 5:

3y = 4

y = 4/3 = 1 1/3.

Now find z by substituting for y in equation 4:

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Finally, we find x by substituting for y and z in equation 1:

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x = 23/3 =  7 2/3.

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3 years ago
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