shannonbailey116 shannonbailey116
  • 30-11-2017
  • Mathematics
contestada

Explain how to solve 2x + 7 = 15

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mapija2000 mapija2000
  • 30-11-2017
The x would be 4 because if you multiply 2 times 4, that's 8, and 8+7=15
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Аноним Аноним
  • 30-11-2017
You would work backwards:15-7=8, because you will be adding this anyways later, and then you see that 2x = 8, then divide both sides by two, and you are left with the equation: x = 4, and there is your answer. x = 4.
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