1.
a)
[tex]3x - 7 = 11 / +7\\3x = 18 / :3\\x = 6\\[/tex]
b)
[tex]5(3x-1)=-2 (x-6)\\15x-5=-2x + 12 / +5\\15x = -x + 17 / +2x\\17x = 17 / : 17\\x = 1[/tex]
c)
[tex]\frac{x}{-4} + 3 = 2 /*(-4)\\x + 3 = -8 / -3 \\x = -11[/tex]
d)
[tex]\frac{2x + 5}{3} = 7 / *3\\ 2x+5 = 21 / -5\\2x = 16 /:2\\x = 8[/tex]
