Решите Уравнения а)2.136:(1.9-x)=7.12; б)4.2*(0.8+y)=8.82; в)0.2t+1.7t-0.54=0.22; г)5.6z-2z-0.7z+2.65=7.

а) [latex]2.136:(1.9-x)=7.12[/latex] [latex]1.9-x=2.136:7.12[/latex] [latex]1.9-x=0.3[/latex] [latex]x=1.9-0.3[/latex] [latex]x=1.6[/latex] Ответ: 1.6 б) [latex]4.2*(0.8+y)=8.82[/latex] [latex]0.8+y=8.82:4.2[/latex] [latex]0.8+y=2.1[/latex] [latex]y=2.1-0.8[/latex] [latex]y=1.3[/latex] Ответ: 1.3 в) [latex]0.2t+1.7t-0.54=0.22[/latex] [latex]1.9t=0.22+0.54[/latex] [latex]1.9t=0.76[/latex] [latex]t=0.76:1.9[/latex] [latex]t=0.4[/latex] Ответ: 0.4 г) [latex]5.6z-2z-0.7z+2.65=7[/latex] [latex]2.9z=7-2.65[/latex] [latex]2.9z=4.35[/latex] [latex]z=4.35:2.9[/latex] [latex]z=1.5[/latex] Ответ: 1.5