2x-y=0 find x value
Answers
Step-by-step explanation:
In this example we can determine what the value of 2x is by multiplying x (0) to the value of two. This is correct due to BEDMAS. Which informs us that multiplication comes before subtraction/addition.
Now we have simplified to :
0 - y = 0
Therefore to isolate the numerical value on the right side of the equation you have to do the inverse
0 - 0 -y = 0 - 0
This is then isolating the zero on the right side as it’s a positive value (zeros can be considered both, or referred more accurately as nonnegative).
Therefore we have
-y = 0
And even though y maybe negative that won’t define anything at this point as zero is neither negative or positive.
This can be applied to anything equation.
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.ANSWER
2x+y=0
2x=−y
3x
2
+kxy+2y
2
=0
3x
2
+kx(−2x)+2(4x
2
)=0
3x
2
−2kx
2
+8x
2
=0
k=
2
11
.