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AnnZ [28]
3 years ago
14

How do I solve this system of equations by adding, subtracting, or multiplying? x-y=8;x+y=12

Mathematics
1 answer:
Natasha2012 [34]3 years ago
7 0
By substitution.
Get y or x alone then insert it into the other equation solving for one of the two variables. After that substitute ur answer into one of the equations then solve.
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