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blsea [12.9K]
3 years ago
15

Exsplain the errors

Mathematics
1 answer:
lions [1.4K]3 years ago
8 0

Step-by-step explanation:

Hi, the mistake was in the calculation of the second line to the third line.

    7-3x+4y

=7 - 3(-4) + 4(2)

=7 - (-12) + 8

=7 +12 + 8

=19+ 8

=27

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