when 4 is added from three times a number and the result is divided by 3 more than the number we get 2 /5 then find the number is
Answers
according to question..
(3x+4)/(x+3) =2/5
by cross multiplication..
5(3x+4)=2(x+3)
or..
15x+20=2x +6
15x-2x=6-20
13x=-14
x=-14/13
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Let the number be x
STEP 1: Form the equation:
When 4 is added to the 3 times the number:
3x + 4
.
The result is divided by 3 more than the number:
(3x + 4) ÷ ( x + 3)
.
We get 2/5:
(3x + 4) ÷ ( x + 3) = 2/5
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STEP 2: Solve x:
(3x + 4) ÷ ( x + 3) = 2/5
Combine into single fraction:
(3x + 4)/( x + 3) = 2/5
Cross multiply:
5(3x + 4) = 2(x + 3)
Distribute 5 and 2:
15x + 20 = 2x + 6
Subtract 2x from both sides:
13x + 20 = 6
Subtract 20 from both sides:
13x = -14
Divide both sides by 13:
x = -14/13
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Answer: The number is -14/13
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