A. already in simp form
B. same as a
C. 3/4 ( divide numerator and denominator by 4)
D. same as a and b
4x+5y=20 in slop intercept form would be y= (-4/5)x + 4.
Slope intercept form is y=mx+b. So you would first subtract 4x from both sides. This ends up being 5y= -4x +20. Then divide both sides by 5. This gets you y= (-4/5)x +4.
D. 1
2x-8=-6
+8 +8
2x=2
— —
2x 2
X = 1
