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Assume the first equation is E1: -x+4y=20
Assume the second equation is E2: -7x+4y = -4
Since both equation include 4y, we could eliminate y first.
So E1 - E2: -x+4y - (-7x+4y) = 20 - (-4)
-> -x+4y+7x-4y = 24
-> 6x = 24
-> x = 4
Thus substitute x = 4 to either E1 and E2, and I will just substitute it into E1: -x + 4y = 20 -> -4 + 4y = 20 -> 4y = 24 -> y = 6
Therefore, x = 4 and y = 6
What else can I help you with?
4y20 equals 500 and x plus y equals 500?
4y20 = 500 => y20 = 25 => y = 20√25 = 1.1746 approx Then x = 500 - y = 489.8254 (approx).
What is the x-intercept of the line given by the equation x- 4y20?
Assuming that you meant "x - 4y = 20", the x-intercept is x=20, and the y-intercept is y=-5.
Rewrite the equation 4x 4y20 in slope intercept form?
y = 16X - 80
Rewrite the equation 4x 4y20 in slope-intercept form?
It is not an equation because it doesn't have an equal sign in it so to write it in slope-intercept form is impossible
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