一元一次方程计算训练
1、 2( x 1) 4
2
、 1 ( 1 x 1) 1 1
3
、 1 3 8 x
2 15 2x
2
2
4、 x 1
1
5
2
3
25、 x 4
x 3
26、
x 1
3
(27)54-7Χ=5
(28)6Χ- 10=8
(29)8- 3 Χ= 2 3
8
4
(30)3-
2
Χ=
9
( )
2(
Χ-
1)
=
4
(32) 2(6
-Χ =
8
1
10
31
2)
5
(33) 5- 3Χ= 8Χ+1 (34) 2( -Χ2)+2=Χ+1 (35) 3- Χ= 2- 5( Χ-1)
(36) 3 =Χ5(32- Χ ) (37) 7(4-X )= 9( X -4) ( 38)128-5(2X+3)=73
2
(39) ++= (40) 4X÷=100 ( 41)3(X+1) ÷(2X–4)= 6
(42)3X+ 7X +10 = 90 (43)3(X - 12)+ 23 = 35 (44)7X-8=2X+27
(45)5X -18 = 3–2X (46)(7X - 4)+3(X - 2)= 2X +6 (47)80÷X=20
(48)12X +8X -12= 28 (49)3(2X -1)+ 10=37 (50)+ - X -5=27
(51)2(3X -4)+( 4-X )= 4X (52)3(X+2) ÷5=(X+2)
(53)(3X +5)÷2=( 5X -9)÷3
(54)X-
2
X=
3
7
4
(55)2X +
2
=
3
( 56) 70%X + 20%X =
( 57) X×3 =20×1
5
5
5
4
(58)25% + 10X =
4
(59)X - 15%X = 68
(
)
+
3
5
60 X
X=121
8
61) 5X-3×5 = 5 (62) 2 X÷1 =12
21 7 3 4
(63)6X +5 =
3
X
1
3
)
3
2
7
(64)
(
65
3X=
(66)X
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