Question

2x-1 pe 4 - 3x+2 pe 2= 3 pe 4 • ( 3•2 pe 3+ x-2 pe 6)- 15 pe 4

va rog ajutatima urgent !!! ​

Answer 1

Răspuns:

$\frac{2x - 1}{4} - \frac{3x + 2}{2} = \frac{3}{4} \times ( \frac{3 \times 2}{3} + \frac{x - 2}{6} ) - \frac{15}{4 } \\ \\ \frac{6x - 3}{12} - \frac{(18x + 6)}{12} = \frac{9}{12} \times \\ \\ ( \frac{24}{12} + \frac{2x - 2}{12 }) - \frac{45}{12} \\ \\ 6x - 3 + 18x - 6 = 9 \times (24 + 2x - 2) - 45 \\ \\ 6x - 3 + 18x - 6 = 216 + 18x - 18 - 45 \\ \\ 6x + 18x - 18x = 216 - 18 - 45 + 3 + 6 \\ 6x = 162 = > > > x = 162 \div 6 = 27$