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  • 25-01-2017
  • Mathematics
contestada

If A plus B equals 2X -2 and A -B equals 4X -8, find A and B

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Аноним Аноним
  • 31-01-2017
A+B = 2X -2
A-B = 4X -8

Add the equations, 
2A = 6X - 10
A = 3X - 5

Now, 3X - 5 + B = 2X - 2
B = 2X-3X - 2 + 5
B = 3 - X

Hope this helps!
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