解方程练习题 姓 名X－ X= 2X + = 3/4X + 1/5X = 3.6 X× =20× 1/4 + 10X = X – 3/20X = 68X＋ X＝121 5X－3×＝ X÷＝126X＋5/7-3/7 =8 3-X= ：3/4X：= ÷X= 2 X +6×=4X ：X= X = ： = X： X：=： 3/2×32-4x= 29 x = 4-xX－21×=4 6X＋5 =13.4 X-X= 4χ－6＝385X= :X= X÷=X÷=12 = :X X=×: =X: X-0.25= =3/10 4+0.7X=102 X+X=42 X=105-X X- X=400 X-0.125X=8 = X+X=18 X×( + )= x－0.375x= x×+=4× X－X＝12 5 X－2.4×5＝80.36×5- x = (x- 4.5) = 7 x- 25%x = 10x- 0.8x = 16+6 20 x– 8.5= 1.5 x- x -4= 21 X＋1/4X=90 X－X= 7/12:X=5/8:6/7X＋X＝121 5X－3×＝ X÷＝12
