235-{16×100÷[36-42÷x÷(15÷3-4÷1)-20]+14×5}=5
235-{16×100÷[36-42÷x÷(5-4)-20]+70}=5
236-{16×100÷[36-42÷x÷1-20]+70}=5
235-{16×100÷[36-42\pex-20]+70}=5
235-{16×100÷[16-42\pex]+70}=5
235-{16×100÷\16x-42\pex+70}=5
235-{16×100×x\pe16x-42+70}=5
235-{16×100×x\pe2(8x-21)+70}=5
235-{8×100×x\pe8x-21+70}=5
235-{800x\pe8x-21\+70}=5
235-800x\pe8x-21\-70=5
165-800x\8x-21\=5
-800x\pe8x-21\=5-165
-800x\pe8x-21=-160
-800x=-160(8x-21)
-800x=-1280x+3360
-800x+1280x=3360
480x=3360
x=7;
x≠21\pe8; x≠0..
x=7
