B. 15 because
-18+x=-3
X= -3 + 18
X = 15
Answer:
He lost 5 coconuts.
Step-by-step explanation:
When he divides the number left among 3 and 5 people the remainder is 2 in each case so the number that each person gets must be 15 or a multiple of 15.
So if x is the number left when he reaches home, then:
2 = x mod 3 and
2 = x mod 5
where x = 15 + 2 = 17 or 30 + 2 = 32 or 45 + 2 = 47.
But we also must satisfy 3 = x mod 4
If x = 17:
17 mod 4 = 1 so its not 17.
32 mod 4 = 0 so it's not 32.
47 mod 4 = 3 so x = 47.
Therefore the number he lost = 52 - 47 = 5.
Answer:
The line '10x-8=10' should be '10x-8=4x+10'
He took 2x away on the right side , as opposed to adding it.
Answer:
13x-9
Step-by-step explanation:
9×(x - 1)
9x - 9 +4x
collect like terms, 9x+4x=13x
Solution is not extraneous, x=1 is correct answer
Step-by-step explanation:
We need to solve the equation 
and find value of x.
Solving:
So. Value of x = 1
Now checking if solution is extraneous or not
Solution is extraneous if value of x doesn't satisfy the given equation.
Checking: putting x=1 in the equation
Since x=1, verifies the given equation so, x=1 is not extraneous solution
Solution is not extraneous, x=1 is correct answer
Keywords: Solving equations and finding extraneous roots
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