a)
[tex]4x - 2 = 32 \\ 4x = 34 | \div 4 \\ x = 8.5[/tex]
b)
[tex]15 - 3(x - 4) = 2x + 2(3 + x) \\ 15 - 3x + 12 = 2x + 6 + 2x \\ - 7x = - 21 | \div ( - 7) \\ x = 3[/tex]
[tex]4x-2=32\\\\4x=32+2\\\\4x=34 \ \ |:4\\\\x=\boxed{\frac{34}{4}}=\boxed{8\frac{1}{2}}=\boxed{8,5}[/tex]
[tex]15-3(x-4)=2x+2(3+x)\\\\15-3x+12=2x+6+2x\\\\-3x+27=4x+6\\\\-3x-4x=6-27\\\\-7x=21 \ \ |:(-7)\\\\\boxed{x=-3}[/tex]
