Question

помогите решить даю 60 балов

Answer 1

$\frac{3}{4} x - 5 = 7 - \frac{1}{4} x \\ \frac{3}{4} x + \frac{1}{4} x = 7 + 5 \\ x = 12$

$1 \frac{1}{2} x + 11 = \frac{1}{2} x - 2 \\ 1 \frac{1}{2} x - \frac{1}{2} x = - 2 - 11 \\ x = - 13$

$1 \frac{2}{3} x - 3 = - \frac{1}{3} x + 2 \\ 1 \frac{2}{3} x + \frac{1}{3} x = 2 + 3 \\ 2x = 5 \\ x = 5 \div 2 \\ x = 2.5$

$\frac{5}{9} x + 1 = \frac{4}{9} x - 2 \\ \frac{5}{9} x - \frac{4}{9} x = - 2 - 1 \\ \frac{1}{9} x = - 3 \\ x = - 3 \div \frac{1}{9} \\ x = - 27$

$- 3 \frac{2}{5} x + 11 = 2 - \frac{2}{5} x \\ - 3 \frac{2}{5} x + \frac{2}{5} x = 2 - 11 \\ - 3x = - 9 \\ x = - 9 \div ( - 3) \\ x = 3$

$1 \frac{4}{7} x - 2 = 7 - 1 \frac{3}{7} x \\ 1 \frac{4}{7} x + 1 \frac{3}{7} x = 7 + 2 \\ 3x = 9 \\ x = 9 \div 3 \\ x = 3$

$\frac{1}{2} x + 7 = 9 - \frac{1}{2} x \\ \frac{1}{2} x + \frac{1}{2} x = 9 - 7 \\ x = 2$

$1 \frac{4}{5} x - 3 = \frac{4}{5} x - 1 \\ 1 \frac{4}{5} x - \frac{4}{5} x = - 1 + 3 \\ x = 2$

$1 \frac{1}{3} x - 5 = 2 - \frac{2}{3} x \\ 1 \frac{1}{3} x + \frac{2}{3} x = 2 + 5 \\ 2x = 7 \\ x = 7 \div 2 \\ x = 3.5$

$\frac{3}{7} x + 3 = \frac{2}{7} x - 1 \\ \frac{3}{7} x - \frac{2}{7} x = - 1 - 3 \\ \frac{1}{7} x = - 4 \\ x = - 4 \div \frac{1}{7 } \\ x = - 28$

$- 2 \frac{1}{4} x + 5 = - 1 \frac{1}{4} x + 3 \\ - 2 \frac{1}{4} x + 1 \frac{1}{4} x = 3 - 5 \\ - x = - 2 \\ x = 2$

$2 \frac{3}{5} x - 5 = 3 - 1 \frac{2}{5} x \\ 2 \frac{3}{5} x + 1 \frac{2}{5} x = 3 + 5 \\ 4x = 8 \\ x = 8 \div 4 \\ x = 2$