3(2x+1)+1=6x+3+1=6x+5
4(6x+5)+1=24×+20+1=24×+21
5(24x+21)-44=876
120x+105-44=876
120x+61=876
120=876-81
120x=815
x=815/120 (simplificăm prin 5)
x=163/24
COROANA??
Răspuns:
5•{4•[3•(2•+1)+1]+1}-44=156
Explicație pas cu pas:
5*[4*(3*3+1)]-44=
=5*(4*10)-44
=5*40-44
=200-44
=156
