sin(30)=x/7

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Solution for sin(30)=x/7 equation: 


x in (-oo:+oo)

sin(30) = x/7 // - x/7

sin(30)-(x/7) = 0

sin(30)-1/7*x = 0 // - sin(30)

-1/7*x = -sin(30) // : -1/7

x = -sin(30)/(-1/7)

x = 7*sin(30)

x = 7*sin(30)

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