heres the problem: 0.4x+0.4y=-18

-0.8x+-0.8y=-36

Thank you for the opportunity to help you with your question!

We have the equation as

.4x+.4y=-18 ...eqn(1)

-.8x+-.8y=-36 ...eqn(2)

2*eqn(!)+eqn(2),eliminate y

2*.4x-.8x =2*-18-36

.8x-.8x=-36-36

0=-72(cannot be true)

As it is not valid therefore,the system has no solution.

Thus no solution exist for this system.(answer)

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