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vaniamarie95 vaniamarie95
  • 22-03-2014
  • Mathematics
Answered

0.6x-0.3y=-1.5
0.04x-0.02y=-0.1

Verified Answer :

crisforp
crisforp crisforp
  • 22-03-2014

6x - 3y = -15; / 2 =>    12x - 6y = -30;
4x - 2y = -10; /(-3) => -12x + 6y = 30
                                   ____________
                            => 0 = 0 True, for every x and every y real numbers;

the solution is {(x, 2x + 5) / x∈R };

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