Question

Please anwer the questions from 4 to 10

Answer 1

Answer:

iv) x = 65

v) x = 65 y = 50

vi) x = 70

vii) x = 72

Step-by-step explanation:

iv) 2x +50 = 180

=> x = 65

v)  x + 115 = 180

x = 65

2x + y = 180

130 + y = 180

y = 50

vi)

2x + 40 = 180

x = 70

vii)

(180-2x) + 144 = 180

x = 72

Break it once more.