Question

ecuaciones de primer grado por operaciones inversas
x+2=7
x+5=8
x+15=28
y+9=45
x-4=13
x-36=78
3x=36
6x=72
8+x=43
9x+32=3x+86
15+2x=73
5x-465=0
​

Answer 1

Respuesta:

1.x=5, 2.x=3, 3.x=13, 4.x=36, 5.x=17, 6.x=114, 7.x=12, 8.x=12, 9.x=35, 10.x=9, 11.x=29, 12.x=93

Answer 2

Respuesta:

×+2=7 = ×=5

x+5=8 = ×=3

x+15=28 = ×=13

y+9=45 = y=36

x-4=13 = ×=17

x-36=78 = ×=114

3x=36 = ×= 12

6x=72 = ×=12

8+x=43 = x= 35

9x+32=3x+86 = ×=9

15+2x=73 = ×= 29

5x-465=0 = ×=0