2015-12*(5х-4у+20)-8*(5у-7х+125)-4*(3х+2у+193)

Question

2015-12*(5х-4у+20)-8*(5у-7х+125)-4*(3х+2у+193)

Answer 1

2015-12*5х+12*4у-12*20-8*5у+8*7х-8*125-4*3х-4*2у-4*193=2015-60х+48у-240-40у+56х-1000-12х-8у-772=2015-240-1000-772-60х+56х-12х+48у-40у-8у=3-16х