SOLUTION: if 18 is subtracted from four times of a number 30 is obtained.find the number.

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Question 175344: if 18 is subtracted from four times of a number 30 is obtained.find the number.
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!

Let x be the number:
As per condition:
4x-18=30, eqn 1
continuing,
4x=30%2B18=48
divide by 4 to isolate x:
cross%284%29x%2Fcross%284%29=cross%2848%2912%2Fcross%284%29
highlight%28x=12%29 Answer
Check,
4%2A12-18=30
48-18=30
30=30
Thank you,
Jojo