Tentukan nilai variabel yg belum diketahui.3(2x+1)-4 (2x-3)=5​

Jawaban:

3(2x+1)-4(2x-3)=5

(3(2x+1))-(4(2x-3)=5

6x+3 – 8x – 12 =5

(6x-8x)+ (3-12)=5

-2x + (-9) =5

-2x = 5 + 9

-2x = 14

x = 14: (-2)

x = – 7