Question

ex,14 va rog!!!!!!!!!!!!!! e cu grade°​

Answer 1

a)

x + 30 + x = 180

2x = 150

x = 75

b)

x - 42 + x = 180

2x = 222

x = 111

c)

x + 3x/5 = 180

5x + 3x = 900

8x = 900

x = 112,5

d)

x + 24 + x = 90

2x = 90 - 24

2x = 66

x = 33

e)

x + x - 3 = 90

2x = 93

x = 46,5