-5*(9-2х)=15



4*(5х-3) + 3*(2-6х)=-10

1) -5*(9-2x) = 15-45+10x = 1510x = 15+4510x = 60x = 6Ответ: 62) 4*(5x-3)+3*(2-6x) = -1020x-12+6-18x = -102x-6 = -102x = -10+62x = -4x = -2Ответ: -1