Вирішити 5 клас 1) 56:(1,12+1,68)-1,5. 2) 9,6:(1,32+3,48)-1,4. 3) (x-14):18=4.
1.12+1.68=2.70 56:2.70=56/1*100/27=0.02 0.02-1.5=2/100-15/10=2/100-150/100=-148/100=-1.48
1.32+3.48=4.80 9.6:4.80=96/10:48/100=96/10*100/46=0.2 0.2-1.4=2/10-14/10=-1.2
х-14=4*18 х-14=72 х=72+14 х=86