Respuesta :
maria =x---------------------29
pedro= x + 7-----29+7=36
---------
65
x + (x+7) = 65
2x = 65 - 7
2x = 58
x=58/2
x=29
pedro= x + 7-----29+7=36
---------
65
x + (x+7) = 65
2x = 65 - 7
2x = 58
x=58/2
x=29
maria =x---------------------29
pedro= x + 7-----29+7=36
---------
65
x + (x+7) = 65
2x = 65 - 7
2x = 58
x=58/2
x=29
pedro= x + 7-----29+7=36
---------
65
x + (x+7) = 65
2x = 65 - 7
2x = 58
x=58/2
x=29