Answer:
4(13-b) =6(2-0.5b)
52-4b=12-3.0b
52-4b=12-3b
52-12=4b-3b
40=b
I think the answer is
y = 148°
Step-by-step explanation:
4x - 18 = 2x + 12 (alternate exterior angles are congruent)
Collect like terms
4x - 18 = 2x + 12
4x - 2x = 18 + 12
2x = 20
Divide both sides by 2
x = 10
y = 180 - (2x + 12) (linear pair theorem)
Plug in the value of x
y = 180 - (2(10) + 12)
y = 180 - (20 + 12)
Answer: x³-2x²-5x-6=(x-1)*(x-3)*(x+2).
