Answer:
3. x=16
4. x=51
Step-by-step explanation:
3. 3x-8=x+24
2x=32
x=16
4. 2/3(x+27)= 180-(3x-25)
2/3x+18=180-3x+25
11/3x=187
11x=561
x=51
Excercise 3:
By Alternate Exterior angles,
(x + 24)° = (3x - 8)°.
=> 2x = 32, x = 16.
Excercise 4:
By C-angles,
2/3 * (x + 27)° + (3x - 25)° = 180°.
=> 2x/3 + 18 + 3x - 25 = 180
=> 11x/3 = 187
=> x = 187 * (3/11) = 51.
