Mathematics
Mathematics, 13.01.2020 05:31, nae8048

What is the result of adding these two equations?
5xβˆ’9y=1βˆ’7x+2y=βˆ’5\begin{aligned} 5x-9y & = 1 -7x+2y & = -5 \end{aligned}
5xβˆ’9y

βˆ’7x+2y


=1
=βˆ’5

answer
Answers: 1

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What is the result of adding these two equations?
5xβˆ’9y=1βˆ’7x+2y=βˆ’5\begin{aligned} 5x-9y &...

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