Реши систему {u=8+v {u−2v+1=3

Question

Реши систему
{u=8+v
{u−2v+1=3

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Answer 1

{u=8+v
{u−2v+1=3
8+v-2v+1=3
v=9-3
v=6
u=8+6
u=14

Answer 2

{u = 8 + v
{u - 2v + 1 = 3;
{u = 8 + v
{8 + v - 2v = 2;
{u = 8 + v
{-v = -6;
{u = 14
{v = 6