Question

用一元一次方程解答,(1) 3x=6x-24 (2) 7x-5=x+3 (3)2(x-3)-3(2x+1)=6(1-x)

Answer 1

(1).3x=24 (2).6x=8 (3).2x-6-6x-3=6-6x (4).x-x+3x+18=1

x=8 x=4/3 2x=15 3x=-17

x=7.5 x=-17/3

(5).2x-4-12x+3=9-9x (6).0.65x-0.65=0.37x+0.37

x=-10 0.28x=1.02

x=51/14