Question

Calcule X nos ângulos suplementares.

Answer 1

2×-30+×=90+30 3×=120 ×=120/3

Answer 2

1 )

3x - 30 + x + 10 = 180

4x - 20 = 180

4x = 180 + 20

4x = 200

x = 200 / 4

x = 50°

2)

x + x + 10 = 180

2x = 180 - 10

2x = 170

x = 170 / 2

x = 85°

3) 8x + x = 180

9x = 180

x = 180 / 9

x = 20°