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alexandr402 [8]
2 years ago
11

3a−28−7a=10a what is a?

Mathematics
2 answers:
Ilia_Sergeevich [38]2 years ago
7 0
Answer:
A=-2

Hope this helps
nirvana33 [79]2 years ago
3 0

Answer:

A= -2

Step-by-step explanation:

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Answer:

The answer to your question is:

x = -10; y = 8

Step-by-step explanation:

Solve equations by elimination method                          

                                              2x + 3y = 4    (1)

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Multiply 2 by -2

                                              2x + 3y = 4

                                             -2x - 4y = -12

                                                    -y = -8

                                                     y = 8

Substitute y in (2)

                                             x + 2(8) = 6

                                            x = 6 - 16

                                            x = -10

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Step-by-step explanation:

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Step-by-step explanation:

you need to cross multiple

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