Question

diketahui persamaan 9x + 5 = 2x-9, nilai
x + 9 adalah​

Answer 1

EdiSi Lupa MaTeri

9x + 5 = 2x - 9

• 9x - 2x = -9 + 5
• 7x = -14
• x = - 14/7
• x = -2

x + 9 :

= -2 + 9

= 7