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3 years ago

5

Solve. x+ y = 3 y = x-7 Use the substitution method. The solution is (5, −2). There is no solution. The solution is (8, 1). Ther

e are an infinite number of solutions.

1 answer:

LekaFEV [45]3 years ago

5 0

<em>Answer:</em>

<em>The solution is (5, −2)</em>

<em>Step-by-step explanation : </em>

<em>x + y = 3 => y = 3 - x</em>

<em> y = x - 7 } => </em>

<em>=> 3 - x = x - 7 => 3 + 7 = x + x => 2x = 10 => </em><em>x = 5</em>

<em />

<em>x + y = 3</em>

<em>5 + y = 3</em>

<em>y = 3 - 5</em>

<em>y = - 2</em>

<em />

<em></em>

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<u>Answer:</u>

1 pendant costed $2.1.

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<u>Conclusion:</u>

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Answer:

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