X
X + 2
X + 4
3x + 6 = 258
3x + 6 - 6 = 258 - 6
3x = 252
X = 84
84 + 2 = 86
84 + 4 = 88
-5x + 12 = 32 Subtract 12 from both sides
-5x = 20 Divide both sides by -5
x = -4
Answer:
if two parallel lines are cut by a transversal so that the alternate interior angles are <u>congruent,</u> then the lines are parallel.
(6 - 3)/(-1 +4)= 3/3= 1 is the slope
y - 3 = x + 4
y = x + 7