Решите уравнение (7/12+11/30x):7 1/4=1/3 7 1/4 = Семь целых одна четвертая.

[latex]( \frac{7}{12}+\frac{11}{30}x) [/latex][latex] :7\frac{1}{4}= \frac{1}{3} [/latex] [latex] \frac{7}{12}+ \frac{11}{30}x= \frac{1}{3} *7 \frac{1}{4} [/latex] [latex] \frac{7}{12}+ \frac{11}{30}x= \frac{1}{3} * \frac{29}{4} [/latex] [latex] \frac{7}{12}+ \frac{11}{30}x= \frac{29}{12} [/latex] [latex] \frac{35}{60}+ \frac{22}{60}x= \frac{29}{12} [/latex] [latex] \frac{22}{60}x= \frac{29}{12}- \frac{35}{60} [/latex] [latex] \frac{22}{60}x= \frac{145}{60} - \frac{35}{60} [/latex] [latex] \frac{22}{60}x= \frac{110}{60} [/latex] [latex]x= \frac{110}{60}: \frac{22}{60} [/latex] [latex]x= \frac{110}{60}* \frac{60}{22} [/latex] [latex]x= \frac{110}{22} [/latex] [latex]x=5[/latex]