Question

-15x-3(2-3x)+18=-(4x+2)

Answer 1

-15x-6+9x+18=-4x-2
-15x+13x=-2+6-18
-2x=-14
x=-14/-2
x=7
++++++++++++++++
-15*7-3(2-3*7)+18=-(4*7+2)
-30=-30

Answer 2

$-15x-3(2-3x)+18=-(4x+2) \\ -15x-6+9x+18=-4x-2 \\ -15x+9x+4x=-2+6-18 \\ -2x=-14\\x=7$