Question

2 angles who's measures are a&b are such that 2a-3b =60°
then 5b=x if they form a linear pair then find the value of x

Answer 1

value of x =100° as b =20°

Answer 2

hey here is your answer

given that 5b=x

since the angles form a linear pair
=>2a+3b=180°
=>2a =180°-3b..............(i)

now 2a-3b=60° [GIVEN]
=> 180°-3b-3b=60°
=> -6b =60°-180°
=> -6b/6 =-120°/6
=> -b = -20 °
or b = 20°

now 5b=x .........given
5×20°=x
=> x = 100°
hope it helps you
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