I hope you don't find the solution too messy. If there is anything you don't get. Let me know and I will explain it:
Answer:
0
Step-by-step explanation:
The opposite of 12 is -12, and 12+(-12)=12-12, or 0.
Answer:
x = 110°
Step-by-step explanation:
Given that AB = AD then Δ ABD is isosceles and the base angles are congruent, that is
∠ ABD = ∠ ADB = 35°
The sum of the 3 angles in the triangle = 180°, that is
x + 35° + 35° = 180°
x + 70° = 180° ( subtract 70° from both sides )
x = 110°
Solve for b?
1. Distribute “4(4b+3)” and “3(6-11)”
16b+12+2b=18-33
2. combine like terms
18b+12=-15
18b=-27
b=-27/18
3. simplify
b=3/2