Question

9. In the following figures, find the values of y and z.
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Answer 1

i ) z=x-50

y=x+50

y+z=180

On substituting values

x+50+x-50=180

2x+0=180

((x=90))

y+x-50=180

y+90-50=180

y+40=180

((y=140))

y+z=180

140+z=180

((z=40))

ii ) 2x+10=5x-80

5x-2x=10+80

3x=90

((x=30))

2x+10+y=180

60+10+y=180

y=180-70

(( y=110))

y=z

((z=110))

Answer 2

Answer:

Step-by-step explanation: