解方程。 (1)x÷8=0.06 (2)1.26-2x=0.74 (3)1.8÷x=7.5 (4)1.3x+1.5x=0.14 (5)x-0.25x=2.8+0.2 (6)7x-3x+0.04=0.4
(1)x÷8=0.06 x=0.48 | (2)1.26-2x=0.74 2x=0.52 x=0.26 | (3)1.8÷x=7.5 |
(4)1.3x+1.5x=0.14 2.8x=0.14 x=0.05 | (5)x-0.25x=2.8+0.2 0.75x=6 x= 4 | (6)7x-3x+0.04=0.4 4x=0.36 x=0.09 |