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elena55 [62]
3 years ago
9

What is the result of subtracting the second equation from the first? \begin{aligned} -2x+7y &= 10 \\\\ 3x+7y &= 2 \end{

aligned} −2x+7y=10 3x+7y=2 ​ ​
Mathematics
2 answers:
Ray Of Light [21]3 years ago
8 0

Answer:

The result is that 5x = -8

Step-by-step explanation:

Here, we want to subtract 3x + 7y = 2 from -2x + 7y = 10

Mathematically that would be;

(-2x+7y)-(3x+7y) = 10-2

-2x + 7y -3x -7y = 8

-2x -3x + 0 = 8

-5x = 8 or 5x = -8

julsineya [31]3 years ago
3 0

Answer:

  -5x = 8

Step-by-step explanation:

The result is shown here. The y-terms cancel.

  \begin{array}{rccc}& -2x+7y &= &10 \\-&(\ \,3x+7y &= &2)\\\cline{1-4}&-5x+0y&=&8 \end{array}

The simplified result is ...

  -5x = 8

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