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Mathematics 12 Online
OpenStudy (anonymous):

Find the value of x.

OpenStudy (blaque678):

whats the equation?

OpenStudy (anonymous):

|dw:1356628178784:dw|

OpenStudy (anonymous):

Sum of angles of a triangle = 180

OpenStudy (anonymous):

Now, can u set up the equation?

OpenStudy (anonymous):

no.. thats why i asked the question.. i need help knowing how to do this

OpenStudy (anonymous):

Sum of angles of a triangle = 180 In this case, 90 + (2x) + (x+15)=180

OpenStudy (anonymous):

U need to Solve for x

OpenStudy (anonymous):

x=25?

OpenStudy (anonymous):

\[\checkmark\]

OpenStudy (anonymous):

very correct

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