The equation 2x + 3Y = 30 is transformed into a formula containing x to express y, and x = 3 and y = - 6 are obtained respectively The equation 2x-3y = 0 is expressed by the formula with y which is transformed into ⊙ ﹏ ⊙ B, and y = 1, y = 5 / 3 respectively How many solutions are there for binary power X + y = 5, and how many positive integer solutions are there? Find the positive integer solution of binary linear equation 2x + 3Y = 12

The equation 2x + 3Y = 30 is transformed into a formula containing x to express y, and x = 3 and y = - 6 are obtained respectively The equation 2x-3y = 0 is expressed by the formula with y which is transformed into ⊙ ﹏ ⊙ B, and y = 1, y = 5 / 3 respectively How many solutions are there for binary power X + y = 5, and how many positive integer solutions are there? Find the positive integer solution of binary linear equation 2x + 3Y = 12

I don't understand. Which question are you asking? Can you ask one by one separately? Otherwise, it can't be solved

The equation 2x + y = 13 is transformed into the expression X of Y

x=（13-y）/2

The equation 2x + 3Y = 15 is transformed into the expression of Y by X, and the corresponding values of y when x = O and x = - 3 are obtained respectively

y=（15-2x）/3
When x = 0, y = 5
When x = - 3, y = 7