Question

Va rog urgent rezolvati inecuatiile a 8y=16 b 5x+6=31 c 9y=36 d 2x<11 e 7x>14 f x-4=8 g x+3=6 h 2x+6=36 i 4x+8 =16

Answer 1

8y=16/:8 y=2 8•2=16 5x+6=31|-6 5x=25/:5 x=5 9y=36|:9 y=4 2x<11 x={1,2,3,4} 7x>14 x={1} x-4=8|+4 x=12 x+3=6/-3 X=3 2x+6=36|-6 2x=30|:2 x=15 4x+8=16|-8 4x=8/:4 X=2