QUESTION IMAGE
Question
find the values of x and y...
*to solve for x - use the fact that all triangles add up to 180 degrees. add up all 3 angles inside the triangle and set it equal to 180!
Step1: Find the value of \(x\)
Use the triangle - angle sum property. The sum of the interior angles of a triangle is \(180^{\circ}\).
The three angles of the triangle are \((2x - 9)^{\circ}\), \((7x + 13)^{\circ}\), and \(41^{\circ}\).
So, \((2x-9)+(7x + 13)+41=180\).
First, simplify the left - hand side:
Subtract \(45\) from both sides: \(9x=180 - 45=135\).
Divide both sides by \(9\): \(x=\frac{135}{9}=15\).
Step2: Find the value of \(y\)
Use the linear - pair property. The angle \((7x + 13)^{\circ}\) and \(y^{\circ}\) form a linear pair (they are supplementary, so their sum is \(180^{\circ}\)).
Since \(x = 15\), then \(7x+13=7\times15 + 13=105+13 = 118\).
Since \(y+(7x + 13)=180\), then \(y=180-(7x + 13)\).
Substitute \(x = 15\) into the equation: \(y=180-118 = 62\).
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\(x = 15\), \(y=62\)