Respuesta :
8(x+12)=8x+96
2(5x+9)= 10x+18
8x+96=10x+18
-18 -18
---------------------
8x+78= 10x
- 8x -8x
-----------------
78=2x
78÷2=36
2(5x+9)= 10x+18
8x+96=10x+18
-18 -18
---------------------
8x+78= 10x
- 8x -8x
-----------------
78=2x
78÷2=36