Question

solve- x+y=13 and (10 y + x) + 12= 5(x+y)

Answer 1

Answer:

plz mark brainly

Step-by-step explanation:

10y + x + 12 -5x - 5y = 0

=> 4x - 5y = 12

x + y = 13

=> 4 * ( 13- y ) - 5y = 12

=> 40 = 9 y

=> y = 40/9

13 - 40/9 = x = 77/9