Question

求教数学解方程 1* 7-x＝13 2* 4x+3＝2-x 3* 7x+6＝6x

求教数学解方程
1* 7-x＝13
2* 4x+3＝2-x
3* 7x+6＝6x
4* 4-3x＝x+1
5* x+1＝2分之1x-1

Answer 1

求教数学解方程
1* 7-x＝13
7-13=x
x=-6

2* 4x+3＝2-x
4x+x=2-3
5x=-1
x=-1/5

3* 7x+6＝6x
7x-6x=-6
x=-6

4* 4-3x＝x+1
4-1=3x+x
3=4x
x=3/4

5* x+1＝2分之1x-1
x-2分之1x=-1-1
2分之x=-2
x=-4

Answer 2

1.7-x=13 x=7-13=-6
2.4x+3=2-x 4x+x=2-3 5x=-1 x=-0.2
3.7x+6=6x 7x-6x=-6 x=-6
4.4-3x=x+1 x+3x=4-1 4x=3 x=0.75
5.x+1=0.5x-1 x-0.5x=-1-1 0.5x=-2 x=-4

Answer 3

1. x=-6 2. x=五分之一 3. x=-6 4.x=四分之三 5. x=-4

Answer 4