[tex]y = 4x - 1[/tex]
1)
[tex]x = - 2 \\ y = 4 \times ( - 2) - 1 = - 8 - 1 = - 9 [/tex]
2)
[tex]y = 11 \\ 4x - 1 = 11 \\ 4x = 11 + 1 \\ 4x = 12 \\ x = 12 \div 4 \\ x = 3[/tex]
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Verified answer
[tex]y = 4x - 1[/tex]
1)
[tex]x = - 2 \\ y = 4 \times ( - 2) - 1 = - 8 - 1 = - 9 [/tex]
2)
[tex]y = 11 \\ 4x - 1 = 11 \\ 4x = 11 + 1 \\ 4x = 12 \\ x = 12 \div 4 \\ x = 3[/tex]