(1) | (2) | (3) | (4) | (5) | (6) |
× | √ | × | × | × | √ |
(1) | (2) | (3) | (4) |
= | > | < | = |
(1)x+409=655
x=655-409
x=246
|
(2) x-4.7=0.76 x=0.76+4.7 x=5.46 |
(3) x÷5=24 x=24×5 x=120 |
(4)32+6x=50 6x=18 x=3 |
(5)8.2x-7.4=9 8.2x=16.4 x=2 |
(6)0.64x÷4=1.6 0.64x=6.4 x=10 |
(1)3x=3.24
x=1.08
|
(2)8x÷2=80
8x=160
x=20
|
(1) | (2) | (3) |
a | d | a |