math problem

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use the substitution method to solve each of the following systems. Check your answer manually, without the use of a calculator.

 

 

9x+ 8y = −45

y = 15 − 8x

 

- show all steps and please also show answer checks

 

 

    • 10 years ago
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    Tutor Meshricx
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    mathguy18
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    Lachapel
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