The general form of a slope-intercept equation is;
y = mx + c --------where m is the slope and c is the y intercept
1.
4x + 5y = -30
Write it in the form of :
y= mx + c
4x + 5y = -30 ------take 4x to the right-hand side of the equation
5y = -4x -30 ---------divide each term by 5
5y/5 = -4x/5 -30/5
y= -4/5 x - 6 ---------equation in slope-intercept form
2.
x-y = -8 -------make y positive by taking it to the right-hand side of the equation
x= y-8 ----------take -8 to the left-hand side of the equation
x+8 =y
y= x+8 -------equation in slope-intercept form
Answer
1. y= -4/5 x - 6
2. y= x+ 8