Question

28. In the given figure !|| mand n is the transversal, find x.
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Answer 1

Step-by-step explanation:

x+15=3y

x-3y=-15 (1 equation )

And

2y+ 25=x+25

2y-x=0 (2 equation)

by 1&2 equation

x-3y=-15

-x+2y=0

(by eliminating)

we get

-y=-15

or

y=15

put the value of y in equation 2

-x+2y=0

-x+2(15)=0

-x+30=0

-x=-30

or

x=30

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