bsjzkalP bsjzkalP
  • 22-11-2017
  • Mathematics
contestada

3x-4y=65? What is the value of x? When y=4

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pbcup101 pbcup101
  • 22-11-2017
16.3=x   this is my guess


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Аноним Аноним
  • 22-11-2017
1. Substitute 7 with 4
3x - 4(4) = 65 
3x - 16 = 65

2. Solve
3x - 16 = 65
     +16  +16
       3x = 81
       3       3
         x = 27

3. Check (Optional)
3(27) - 4(4) = 65
81 - 16 = 65
65 = 65


Answer Link

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