Respuesta :

Answer:

4a-2b

=4(7)+2(4)

=28+8

=36

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Answer:

[tex]4a - 2b \\ a = 7 \\ b = 4 \\ \\ so \: 4 \times 7 - 2 \times 4 \\ = 28 - 8 \\ = 20 \\ thank \: you[/tex]

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