Question

Решите уравнение пожалуйста. -3•(x-5)+4(x-5(x-4(x-4(x-3(2-x))))

Answer 1

$-3(x-5)+4Big (x-5(x-4Big (x-4(x-underbrace {3(2-x)}_{6-3x})Big ))Big )=\\=-3x+15+4Big (x-5(x-4Big (x-4(x-6+3x)Big ))Big )=\\=-3x+15+4Big (x-5(x-4Big (underbrace {x-4(4x-6)}_{x-16x+24}Big ))Big )=\\=-3x+15+4Big (x-5underbrace {(x-4Big (-15x+24Big )}_{x+60x-96})Big )=\\=-3x+15+4Big (underbrace {x-5(61x-96)}_{x-305x+480}Big )=\\=-3x+15+4Big (-304x+480Big )=\\=-3x+15-1216x+1920=-1219x+1935$