anonymous
  • anonymous
the sum of eight times a number and seven is twice the number
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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SolomonZelman
  • SolomonZelman
EXAMPLE: `The sum of three times a number and seven is five times the number` Lets call this "number" - x. We get, `The sum of three times x and seven is five times x` Three times x is: 3•x, or just 3x. So we get: `The sum of 3x and seven is five times the number` "Sum of A and B" is: A+B And so is: "sum of 3x and seven" is: 3x+7 So we get: `3x+7 is five times the number` is, means equals, so we can now have: `3x+7 = five times the number` we said that "3 times the number" is 3•x or just 3x. Same way would be: "5 times the number" - 5•x or just 5x. So we get: `3x+7 =5x`
SolomonZelman
  • SolomonZelman
So in this example we have: ` The sum of three times a number and seven is five times the number ` ---> 3x+7 =5x

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