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Sagot :
Given data:
The given value is x=3.
Subtitute 3 for x in the expression y = 5x - 8.
[tex]\begin{gathered} y=5(3)-8 \\ =7 \end{gathered}[/tex]Substitute 7 for y, and 3 for x in the expression y=ax+19.
[tex]\begin{gathered} 7=3a+19 \\ 3a=-12 \\ a=-4 \end{gathered}[/tex]Thus, the value of a is - 4, so option (i) is correct.
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