2,136: (1,9-х)=7,12 4,2*(0,8+у)=8,82 0,2t+1,7t-0.54=0.22 5,6z-2z-0,7z+2,65=7

Question

Математика: 2,136: (1,9-х)=7,12 4,2*(0,8+у)=8,82 0,2t+1,7t-0.54=0.22 5,6z-2z-0,7z+2,65=7

dinara56437 · Answer

4,2*(0,8+у)=8,82 3,36+4,2у=8,82 4,2у=5,46 у=1,3   0,2t+1,7t-0.54=0.22 1,9t=0.22+0.54 1.9t=0.76 t=0.4   5,6z-2z-0,7z+2,65=7 2.9z=7-2.65 2.9z=4.35 z=1.5...

2,136: (1,9-х)=7,12 4,2*(0,8+у)=8,82 0,2t+1,7t-0.54=0.22 5,6z-2z-0,7z+2,65=7

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