QUESTION IMAGE
Question
given ( l parallel m parallel n ), find the value of ( x ).
Step1: 利用平行线性质,同位角相等
因为\(l\parallel m\parallel n\),所以\(9x - 19\)与\(35^{\circ}\)的角是同位角,它们相等,即\(9x - 19 = 35\)。
Step2: 解方程求\(x\)
对\(9x - 19 = 35\)进行求解,首先两边同时加\(19\):\(9x = 35 + 19\),即\(9x = 54\);然后两边同时除以\(9\):\(x=\frac{54}{9}\)。
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\(x = 6\)