need help bad can you help me with this problem (-2/3,1) is a solution to -9x-2y=8
- 9 x - 2 y = 8
x = - 2 / 3
y = 1
- 9 * ( - 2 / 3 ) - 2 * 1 =
18 / 3 - 2 =
6 - 2 =
4
No isn't.
But if:
x = - 2 / 3
y = - 1
Then :
- 9 * ( - 2 / 3 ) - 2 * ( - 1 ) =
18 / 3 + 2 =
6 + 2 =
8
(- 2/ 3 , -1 ) is a solution to
-9x-2y=8
Of course, I'm here to help! To check whether (-2/3,1) is a solution to the equation -9x - 2y = 8, you can substitute the values of x and y into the equation and see if the equation holds true.
Let's start by substituting the x-value, which is -2/3, into the equation:
-9 * (-2/3) - 2y = 8
To simplify this equation, we'll first calculate -9 * (-2/3):
-9 * (-2/3) = 18/3 = 6
Now, substituting the value of x yields:
6 - 2y = 8
Next, we'll isolate the term containing y by subtracting 6 from both sides of the equation:
-2y = 8 - 6
-2y = 2
Now, we can solve for y by dividing both sides of the equation by -2:
-2y / -2 = 2 / -2
y = -1
So, we found that when x = -2/3 and y = -1, the equation -9x - 2y = 8 holds true.
Hence, (-2/3, 1) is not a solution to the equation -9x - 2y = 8.