find the value of x : 12 : : (4-x) : 36
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Step-by-step explanation:
x:12=3:4
“:” Sign is a sign of division. So then you replace “:” with “/”(another sign of division/fraction)
So, x/12=3/4
In division, the opposite signs (i.e. 12 and 3 and x and 4) go for multiplication.
Hence, x/12=3/4
4x = 12x3
Then it becomes a simple “x” equation and you find the value of x
4x= 36
x=36/4
x= 9
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