Respuesta:
Aca tenes!! Espero que te sirva :)
1.
[tex]x + 2 = 5 \\ x = 5 - 2 \\ x = 3[/tex]
2.
[tex] y - 4 = 6 \\ y = 6 + 4 \\ y = 10[/tex]
3
[tex]8 - z = 9 \\ - z = 9 - 8 \\ z = - 1[/tex]
4.
[tex]10 - x = 12 \\ - x = 12 - 10 \\ -x = - 2[/tex]
5.
[tex]2x - 3 = 5 \\ 2x = 5 + 3 \\ x = 8 \div 2 \\ x = 4[/tex]
6.
[tex]3y + 2 = 11 \\ 3y = 11 - 2 \\ y = 9 \div 3 \\ y = 3[/tex]
7.
[tex]9x - 6 = 18 \\ 9x = 18 + 6 \\ x = 24 \div 9 \\ x = \frac{8}{3} [/tex]
8.
[tex]5x + 7 = 3 \\ 5x = 3 - 7 \\ x = - \frac{4}{5} [/tex]
9.
[tex]1 - 4w = 9 \\ - 4w = 9 - 1 \\ w = 8 \div ( - 4) \\ w = - 2[/tex]
10.
[tex]2 - 7z = 13 \\ - 7z = 13 - 2 \\ z = - \frac{11}{7} [/tex]
11.
[tex]8x - 6 = 6x + 4 \\ 8x - 6x = 4 + 6 \\ 2x = 10 \\ x = 10 \div 2 \\ x = 5[/tex]
12.
[tex]12 + 7x = 2x + 22 \\ 7x - 2x = 22 - 12 \\ 5x = 10 \\ x = 2[/tex]
13.
[tex]9 - 8y = 27 - 2y \\ - 8y + 2y = 27 - 9 \\ - 6x = 18 \\ x = 18 \div ( - 6) \\ x = 3[/tex]
14.
[tex]2z + 9 = z + 1 \\ 2z - z = 1 - 9 \\ z = - 8[/tex]
15.
[tex]3w - 3 = 4w + 11 \\ 3w - 4w = 11 + 3 \\ - w = 14 \\ w = - 14[/tex]
16.
[tex]10x + 21 = 15 - 2x \\ 10x + 2x = 15 - 21 \\ 12x = - 6 \\ x = - \frac{6}{12} \\ x = - \frac{1}{2} [/tex]
17.
[tex]21x - 3 = 3x + 6 \\ 21x - 3x = 6 + 3 \\ 18x = 9 \\ x = \frac{9}{18} \\ x = \frac{1}{2} [/tex]
18.
[tex]11y - 5y + 6 = - 2 - 9y \\ 6y + 9y = - 2 - 6 \\ 15 y = - 8 \\ [/tex]
