有4絛數學唔識做(代數)

1.5x－32=32
5x=64
x=12.8

2.(x＋17)(3)=48
x+17=16
x=-1

3.90－6x=36
90=36+6x
90-36=6x
54=6x
9=x
x=9

4.3分之2x＋6=12
3分之2x=6
x=6X2分之3
x=9

1,
5x-32=32
5x=32+32
5x=64
x=64/5
x=12.8

2,
(x+17)(3)=48
x+17=48/3
x=48/3-17
x=-1

3,
90-6x=36
90-36=6x
54=6x
6x=54
x=54/6
x=9

4,
2/3X+6=12
2/3X=12-6
2/3X=6
2X=6x3
2X=18
X=18/2
X=9

1. 5x=32+32
x=64/5
x=12.8

2. (x+17)=48/3
(x+17)=16
x=16-17
x=-1

3. 90=36+6x
90-36=6x
6x=54
x=9

4. 3分之2x = 6
2x=6x3
x=18/2
x=9

希望可以幫到你, 不過如果係功課就要問清楚點解, 唔好只係抄答案.

1.
5x - 32 = 32
5x = 32 + 32
x = 64/5

2.
(x＋17)(3)=48
x+17 = 48/3
x+17=16
x=16-17
x = -1

3.
90－6x=36
-6x = 36-90
-6x = -54
x=9

4.
3分之2x＋6=12
2x/3 + 6 = 12
2x/3 = 6
2x = 6 *3
2x=18
x=9


同埋下次講埋咩年奶, 唔該

1.5x－32=32
　　５x=64
x=64/5
2.(x＋17)(3)=48
3x+51=48
3x=-3
x=-1
3.90－6x=36
-6x=-54
x=9
4.3分之2x＋6=12
2x/3=6
2x=18
x=9

　

1.5x－32=32
5X=64
X=12.8

2.(x＋17)(3)=48
3x+51=48
3x=-3
x=-1

3.90－6x=36
6x=54
x=9

4. 3分之2x＋6=12
3分之2x=6
2x=18
x=9

1. x = 0
2. x = -1
3. x=9
4. x=9

1. 5x-32 = 32
5x-32+32=32+32
5x=64
x=12.8

2. (x+17)(3)=48
3x+51=48
3x+51-51=48-51
3x=-3
x=-1

3. 90-6x=36
90-6x+6x=36+6x
90=36+6x
90-36=36+6x-36
54=6x
x=9

4. 2/3x+6=12
2/3x+6-6=12-6
2/3x=6
2x=18
x=9