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melomori [17]
3 years ago
6

Does anyone know how to do this? And can you also help me with this problem, thank you :)

Mathematics
1 answer:
GenaCL600 [577]3 years ago
6 0
<span>Multiply equation(2) with 4 so that coefficient of become same in both the equations(You can make coefficient of y same and can follow the following procedure.) 
</span><span>* Subtract (3) from (1) 
* </span>Divide both sides by -19
*Subtract 21 from both sides.
*Divide both sides by 4
so the solution is     x= 3 and  y= -7
Hope I helped you :)
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