Question

7x 100 3x find the value of x in each case​

Answer 1

Answer:

x=20

Step-by-step explanation:

7x° + 3x° + 100° = 180°

70x° + 30x° + 100° = 180°

100°x + 100° = 180°

100° x = 180° - 100°

100°x = 80°

x° = 100° - 80°

x° = 20° Answer