Question

解方程 (1)4x-2=3-x (2)2-7x=2x-4 (3)10x-3=9 (4)5.8x-3.7x=4.2 (5)

Answer 1

(1)4x-2=3-x5x=5x=1(2)2-7x=2x-4-9x=-6x=2/3(3)10x-3=910x=12x=1.2(4)5.8x-3.7x=4.22.1x=4.2x=2(5)7.3x+2.1x=14.19.4x=14.1x=1.5