(1 - 1/7)x=2 1/4 уравнение пж

(1-1/7) х=2 1/4 6/7 х=2 1/4 х=2 1/4 : 6/7 х=9/4 * 7/6 х=21/8=2 5/8

[latex](1- \frac{1}{7})x=2 \frac{1}{4} [/latex] [latex] \frac{7-1}{7}*x= \frac{9}{4} [/latex] [latex] \frac{6}{7}x= \frac{9}{4} [/latex] [latex] \frac{7}{6}* \frac{6}{7}x= \frac{7}{6}* \frac{9}{4} [/latex] [latex]x= \frac{7}{2}* \frac{3}{4} [/latex] [latex]x= \frac{21}{8} [/latex] [latex]x=2.625[/latex]