benjaminsmith4p4mlrl benjaminsmith4p4mlrl
  • 24-02-2018
  • Mathematics
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twice the sum of a certain number and 73 is 156

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Americ
Americ Americ
  • 24-02-2018
x= a number

Twice the sum of a number (x) plus 73 equals 156.

EQUATION:
2(x + 73)= 156

Not sure if you need to solve it too, but here's how to solve:

2(x + 73)= 156
multiply 2 by all in parentheses

(2*x) + (2*73)= 156
2x + 146= 156

subtract 146 from both sides
2x= 10

divide both sides by 2
x= 5

The missing number is 5.

CHECK:
2(x + 73)= 156
2(5 + 73)= 156
2(78)= 156
156= 156

Hope this helps! :)

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