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Clare used linear combination to solve the equations shown. She did so by multiplying the second equation by a certain number to eliminate the x-terms. What number did Clare multiply the second equation
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Clare used linear combination to solve the equations shown. She did so by multiplying the second equation by a certain number to eliminate the x-terms. What number did Clare multiply the second equation by?

{x - y = 5
{0.5x + 0.1y = 8.5

User Bhanu Birani
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1 Answer

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She multiplied the second equation by -0.5
User Microkernel
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