To solve this system of equations, we can use the method of substitution or elimination. Let's use the substitution method. From the second equation, we can express y as y = 55 - 4x. Substitute this expression for y in the first equation: 7x - 5(55 - 4x) = 76. Simplify this equation to solve for x. Then, substitute the value of x back into one of the original equations to find the value of y.
(9,3)
y = (11-4x)/5
4x-5y+20 = 0 -5y = -4x-20 y = 4/5x+4 which is now in slope intercept form
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
If: 4x = 5y Then: x = 5y/4
(9,3)
If: 20x+5y = 15 Then: y = -4x+3
y = (11-4x)/5
4x-5y+20 = 0 -5y = -4x-20 y = 4/5x+4 which is now in slope intercept form
5
6x plus 3y minus 2x plus 5y equals 4x plus 8y.
If: 4x = 5y Then: x = 5y/4
(-1, 2)
(2, 2)
-2
4x+5y = 30 5y = -4x+30 y = -4/5x+6 in slope intercept form So the y intercept is 6.
45