Question

Find the unknown angles
Please fast

Answer 1

Answer:

here, is your answer mate

Step-by-step explanation:  

Solution 1

3x+7x-21+4x-9= 180° (linear pair)

10x-21+4x-9=180°

14x-21-9=180°

14x=180+30 °

x=210÷14=15

x=15

3x=3*15=45 °

7x-21=7*15-21=84°

4x-9=4*15-9=51°