15x-(-3-(19-18x))+3x=x+90+2x

Question

15x-(-3-(19-18x))+3x=x+90+2x

Answer 1

15x-(-3-(19-18x))+3x=x+90x+2x
15x-(-3-19+18x)+3x=x+90x+2x
15x+3x+19-18x+3x=x+90x+2x
15x+3x-18x+3x-x-90x-2x=-19
-90x=-10
x=0,1

Answer 2

15х+3+19-18х+3х=х+90+2х
15х-18х+3х-х-2х=90-19-3
-2х=68
Х=68:(-2)
Х=-34