Question

решите уравнение -4(1+2x)+3(x-2)=_18.3-20x

Answer 1

-4(1+2х)+3(х-2)=-18,3-20х
-4-8х+3х-6=-18,3-20х
-4-8х+3х-6+20х=-18,3
-8х+3х+20х=-18,3+4+6
15х=-8,3
х=-8,3:15
х=-83/10:15
х=-83/10*1/15
х=-83/150