-170 000-18,28(1000-x)-23,84(x+1500)=(300-x)×123,74-163 212-81,82(x-1500)
-170000-18,28(1000-x)-23,84(x+1500)=(300-x)×123,74-163 212 - 81,82(x-1500) -170000-18280+18,28x-23,84x-35760=37122-123,74х -163 212 - 81,82x+122730