If the total output value of the previous year was X and the total expenditure was Y, then the total output value of the previous year was 2X and the total expenditure was 2Y. The total output value this year is 2X*( 1+ 15%), and the total expenditure is 2Y*( 1- 10%).

So 2x * (1+15%)-2y * (1-10%) = 95.

x-y=25

X= 100 Y=75

If XY is brought in, the total output value this year is 230, and the total expenditure is 135.

2 solve the problem

Replace P+5Q=97 with X= 1.