Question

решите 1/3•(2х+1)+2•1-х)=3 1/3

Answer 1

$\frac{1}{3} \times (2x + 1) + 2 \times (1 - x) = 3 \frac{1}{3} \\ \frac{2}{3} x + \frac{1}{3} + 2 -2 x = 3 \frac{1}{3} \\ - 1 \frac{1}{3} x = 3 \frac{1}{3} - 2 \frac{1}{3} \\ - 1 \frac{1}{3} x = 1 \\ x = 1 \div ( - 1 \frac{1}{3} ) = 1 \div (- \frac{4}{3} ) = 1 \times ( - \frac{3}{4} ) = - \frac{3}{4} \\ x = - \frac{3}{4}$