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vovangra [49]
4 years ago
5

whats the answer to -v+w=7 v+w=1 when this is a '' use elimination to solve each system of equations

Mathematics
1 answer:
Fittoniya [83]4 years ago
6 0
-v+w=7\\ \underline{v+w=1}\\
2w=8\\
w=2\\\\
v+2=1\\
v=-1

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kirza4 [7]
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aleksandrvk [35]

Answer: -2 4/15

Step-by-step explanation: To properly subtract, we need to find a common denominator. We can list the multiples of 3 and 5 to find the common denominator:

3: 3, 6, 9, 12, 15

5: 5, 10, 15


The first common multiple we see is 15.

Calculation:

3 · 3 = 9

9 + 1 = 10

3 1/3 = 10/3

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25 + 3 = 28

-5 3/5 = -28/5

Now to convert into fifteen as the denominator:

-28/5 = -28 x 3/5 x 3 = -84/15

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Now to subtract accordingly:

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Final answer: -34/15 (can be reduced to -2 4/15).

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