Question

ax-2bx+cx=32 a-b=-9,c-b=-7 calculeaza x

Answer 1

ax-2bx+cx=32 a-b=-9,c-b=-7 calculeaza x
descompunem relatia astfel:
ax-bx-bx+cx=32
dam factor comun pe x
x(a-b)+x(c-b)=32  acum inlocuim valorile a-b=-9  si c-b=-7
-9x-7x=32
-16x=32
x=-32:16
x=-2