[tex]a)4x - 7 = 17[/tex]
[tex]4x = 17 + 7[/tex]
[tex]4x = 24[/tex]
[tex]x = 6[/tex]
[tex]b)8.5 + 3y = 5.3[/tex]
[tex]3y = 5.3 - 8.5[/tex]
[tex]3y = - 3.2[/tex]
[tex]y = - \frac{16}{15} = - 1 \frac{1}{15} [/tex]
[tex]c)8x - 6 - 4x = 14[/tex]
[tex]4x - 6 = 14[/tex]
[tex]4x = 14 + 6[/tex]
[tex]4x = 20[/tex]
[tex]x = 5[/tex]
[tex]d)2 { }^{2} 3 + x = 12[/tex]
[tex]2 {}^{2} \times 3 + x = 12[/tex]
[tex]4 \times 3 + x = 12[/tex]
[tex]12 + x = 12[/tex]
[tex]x = 0[/tex]
[tex]e)4x = 13[/tex]
[tex]x = \frac{13}{4} = 3 \frac{1}{4} [/tex]
[tex]f) \frac{1}{6} x = - 4[/tex]
[tex]6 \times \frac{1}{6} x = 6 \times - 4[/tex]
[tex]x = - 24[/tex]
[tex]g)5 - x = - 4[/tex]
[tex] - x = - 4 - 5[/tex]
[tex] - x = - 9[/tex]
[tex]x = 9[/tex]
