Question

For the following equations
147x +233y = 613
233x+ 147y = 527
x + y equals​

Answer 1

Answer:

147x +233y = 613 ------(1)

233x+ 147y = 527--------(2)

adding equation (1) and (2)

147x+233y+233x+147y = 613+527

147x+147y+233y+233x=    1140

147(x+y)+233(x+y)     =  1140

   (147+233)(x+y)     = 1140

          380(x+y)   = 1140

                  x+y    = 1140/380

                x+y = 3