find x given that y=10
y=8-4x
Substitute 10 for y in the second equation so that:
10=8-4x
now solve for x
Put y=10
we have
10=8-4x
subtract 8 both sides we get
2=-4x
or x=-2/4 =-0.5
This answer
To solve for x when y=10, you need to substitute the value of y into the equation y=8-4x and then solve for x.
Let's substitute y=10 into the equation:
10 = 8 - 4x
Next, we can simplify the equation by adding 4x to both sides:
4x + 10 = 8
Now, let's isolate the variable term by subtracting 10 from both sides of the equation:
4x = 8 - 10
This simplifies to:
4x = -2
Finally, we can solve for x by dividing both sides of the equation by 4:
x = -2/4
So, the value of x when y = 10 is x = -1/2.