a)
[tex](x + 3)4 - 5 = 35 \\ 4x + 12 - 5 = 35 \\ 4x = 35 - 12 + 5 \\ 4x = 28 \\ x = 7[/tex]
b)
[tex]2(x - 3) + 18 = 32 \\ 2x - 6 + 18 = 32 \\ 2x = 32 - 18 + 6 \\ 2x = 20 \\ x = 10[/tex]
c)
[tex](7x - 4) \div 3 = 15 \\ \frac{7x - 4}{3} = 15 | \times 3 \\ 7x - 4 = 45 \\ 7x = 49 \\ x = 7[/tex]
d)
[tex](x + 9) \div 5 + 12 = 16 \\ \frac{x + 9}{5} + 12 = 16 | \times 5 \\ x + 9 + 60 = 80 \\ x = 80 - 69 \\ x = 11[/tex]
e)
[tex]8(x - 1) + 25 = 37 \\ 8x - 8 + 25 = 37 \\ 8x = 37 + 8 - 25 \\ 8x = 20 \\ x = \frac{20}{8} [/tex]
f)
[tex](4x + 1) \div 5 = 7 \\ \frac{4x + 1}{5} = 7 | \times 5 \\ 4x + 1 = 35 \\ 4x = 34 \\ x = \frac{34}{4} [/tex]
g)
[tex]3(x + 2) - 7 = 23 \\ 3x + 6 - 7 = 23 \\ 3x = 23 - 6 + 7 \\ 3x = 24 \\ x = 8[/tex]
h)
[tex](8x - 4)2 = 90 \\ 16x - 8 = 90 \\ 16x = 98 \\ x = \frac{98}{16} [/tex]
