Respuesta :
t + b = 786
t = b + 36
b + 36 + b = 786
2b + 36 = 786
2b = 786 - 36
2b = 750
b = 750/2
b = 375 <== cost of bench
t = b + 36
t = 375 + 36
t = 411....cost of the table
t = b + 36
b + 36 + b = 786
2b + 36 = 786
2b = 786 - 36
2b = 750
b = 750/2
b = 375 <== cost of bench
t = b + 36
t = 375 + 36
t = 411....cost of the table