4целых 1 11:10=4.5:(3x-1)
45/11 ÷ 10 = 4,5 ÷ ( 3x- 1) 45/ 110 = 4,5 ÷ (3x - 1) 45( 3x - 1) = 4,5 ×110 135x - 45 = 495 135x = 495 + 45 135x = 540 x = 540/135 x = 4