Seudónimo Seudónimo
  • 09-09-2016
  • Mathematics
contestada

you divide a number by 3 ad 6 then subtract 7 the result is 4 what is the number

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JohnIC
JohnIC JohnIC
  • 09-09-2016
You can solve this problem by making the unknown number a variable, let's say X.
X/3+6-7=4

Step 1: Add together all the whole numbers)
X/3-1=4
Step 2: Add 1 to both sides) X/3=5
Step 3: Multiple both sides by 3) X=15
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