Question

Упростите 5 * (х-2) - 6 * (х+3) - 3 * (2х - 9)

Answer 1

5х - 10 - 6х - 18 - 6х + 27 = - 7 х - 1 = 7х +1

Answer 2

5*(x-2)-6*(x+3)-3*(2x-9)=5x-10-(6x+18)-3*(2x-9)=-x-10-18-3*(2x-9)=-x-28-(6x-27)=-7x-28+27=-7x-1