Question

Rezolvați ecuațiile: 1. 17X-9=15X+11; 2. 4 (2X-8)=3 (2X+6)

Answer 1

$1)17x - 9 = 15x + 11$

$17x - 15x = 11 + 9$

$2x = 20 \: | \div 2$

$x = 10$

$2)4(2x - 8) = 3(2x + 6)$

$8x - 32 = 6x + 18$

$8x - 6x = 18 + 32$

$2x = 50 \: | \div 2$

$x = 25$