Question

二百道数学选择题,及答案,过程？

Answer 1

x+2.5=8 370+x=580 0.7x=0.991 x-6.3=10 x÷12=180
3x=0.6 x+6=145 24+x=28 x÷0.5=3 x-154=6
x-12.5=25 3.5x=2.8 x÷0.8=5 x+1.25=25 4.5x18
15+x=42 3.5-x=2.5 x÷0.5=5 x-8.6=8.6 x÷12=2.5
8x=4 20-x=20 25÷x=10 0.25x=8 x-32=75
x+16=76 x-7/9=2 6x=0.12 x÷0.5=25 4/15+x=7/20
x-7/18=0 125x=10 1÷x=25 47-x=8 5x=1.65
x-11.5=16.5 22-x=16.5 5.8+x=30 24x=12 5.1x=8.6
4x=3.2 y-4.7=7.6 3x=1.02 x÷3=1.02 4.8+x=40.8
(1)2x+8=16 (2)x/5=10(3)x+7x=8 (4)9x-3x=6 (5)6x-8=4 (6)5x+x=9 (7)x-8=6x (8)4/5x=20 (9)2x-6=12 (10)7x+7=14 (11)6x-6=0 (12)5x+6=11 (13)2x-8=10 (14)1/2x-8=4 (15)x-5/6=7 (16)3x+7=28 (17)3x-7=26 (18)9x-x=16 (19)24x+x=50 (20)6/7x-8=4 (30)3x-8=30 (31)6x+6=12 (32)3x-3=1
(33)5x-3x=4 (34)2x+16=19 (35)5x+8=19 (36)14-6x=8 (37)15+6x=27
(38)5-8x=4 (39)7x+8=15 (40)9-2x=1 (41)4+5x=9 (42)10-x=8(43)8x+9=17 (44)9+6x=14 (45)x+9x=4+7 (46)2x+9=17 (47)8-4x=6 (48)6x-7=12 (49)7x-9=8（50）x+13%x=56x+2.5=8 370+x=580 0.7x=0.991 x-6.3=10 x÷12=180
3x=0.6 x+6=145 24+x=28 x÷0.5=3 x-154=6
x-12.5=25 3.5x=2.8 x÷0.8=5 x+1.25=25 4.5x18
15+x=42 3.5-x=2.5 x÷0.5=5 x-8.6=8.6 x÷12=2.5
8x=4 20-x=20 25÷x=10 0.25x=8 x-32=75
x+16=76 x-7/9=2 6x=0.12 x÷0.5=25 4/15+x=7/20
x-7/18=0 125x=10 1÷x=25 47-x=8 5x=1.65
x-11.5=16.5 22-x=16.5 5.8+x=30 24x=12 5.1x=8.6
4x=3.2 y-4.7=7.6 3x=1.02 x÷3=1.02 4.8+x=40.8
x-4.8=40.8 9.5+x=20 17x=306 x÷12=6 35-x=3.5