Answer:
x+3
Step-by-step explanation:
Step-by-step explanation:
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- Set up an equation and solve for x :
⋆ [ Exterior angle is always equal to the sum of two non - adjacent interior angles ]
~Remove the unnecessary brackets
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~Add the like terms : 2x ° & 3x°
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~Move 4x to right hand side and change it's sign
~Similarly move 12 to left hand side and change it's sign
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- Now , Substituting the value of x in (4x+9)° [ Exterior angle ]
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Ok, so the way is
if n coins are tails and you want to seperate the big pile into 2 piles with equal number of tails, then you take n coins out of the main pile and flip them all over
explanation
ok, so let's use the xample
you have 10 tails up
let's say x+y=10
you take out 10 random coins
there are x tails and y heads in that pile because x+y=10
since you took out x tails from the main pile, ther are now 10-x or y tails in the main pile
but you have no way of finding those coins
if yo go to the 10 random coinsn yo got, you have y heads but you need y tails
solution? flip all coins in the 10 pile over to get x heads and y tails