[tex]x - 7 - 2(3x + 5) = 3 \\ x - 7 - 6x - 10 = 3 \\ - 5x = 3 + 10 + 7 \\ - 5x = 20 | \div ( - 5) \\ \boxed{x = - 4}[/tex]
x-7-2(3x+5) = 3
x-7-6x-10 = 3
x-6x = 7+10+3
-5x = 20 /: (-5)
x = - 4
