Question

2X+4（8-X）=20 10X-6（10-X）=36 10X-6（16-X）=64 0.5X+0.1（8-X）=2 4X-2（8-X）=14

用移项解方程

Answer 1

1. 2x-4x+32=20 2x=12 x=6
2. 10x-60+6x=36 16x=96 x=6
3. 10x-96+6x=64 16x=160 x=10
4. 先都乘上10 5x+8-x=20 4x=12 x=3
5. 4x-16+2x=14 6x=30 x=5

Answer 2

1.2x+32-4x=20
4x-2x=32-20
2x=12
x=6
2.10x-60+6x=36
16x=96
x=6

Answer 3

2x+32-4x=20
4x-2x=32-20
2x=12
x=6

Answer 4

2X+4（8-X）=20
2x+32-4x=20
-2x+12=0
x=6

10X-6（10-X）=36
10x-60+6x=36
16x=96
x=6

10X-6（16-X）=64
10x-96+6x=64
16x=160
x=10

0.5X+0.1（8-X）=2
0.5x+0.8-0.1x=2
0.4x=1.2
x=3

4X-2（8-X）=14
4x-16+2x=14
2x=30
x=15