a) 11x +7 = - 6
[tex]11x = - 6 - 7 \\ x = \frac{ - 13}{11} \\ x = - 1.18[/tex]
b) 3x +1 = 19
[tex]3x = 19 - 1 \\ x = \frac{18}{3} \\ x = 6[/tex]
c) 5 + 2x = 1
[tex]2x = 1 - 5 \\ x = \frac{ - 4}{2} \\ x = - 2[/tex]
d) 2x – 3 = 17
[tex]2x = 17 + 3 \\ x = \frac{20}{2} \\ x = 10[/tex]
e) 7x + 1 = 5x - 7
[tex]7x + 1 = 5x - 7 \\ 7x - 5x = - 7 - 1 \\ x = \frac{ - 8}{2} \\ x = - 4[/tex]
f) 5x – 91 = 4x - 77
[tex]5x - 91 = 4x - 77 \\ 5x - 4x = 91 - 77 \\ x = 14[/tex]
g) 5 + 3y = - 1 + 4y
[tex]5 + 3y = - 1 + 4y \\ y = 6[/tex]
