Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

given ( m parallel n ), find the value of ( x ) and ( y ).

Question

given ( m parallel n ), find the value of ( x ) and ( y ).

Explanation:

Step1: 利用平行线内错角相等

因为\(m\parallel n\),所以\(2x + 10\)和\(8x - 20\)是内错角,内错角相等,即\(2x + 10 = 8x - 20\)。

Step2: 解方程求\(x\)

对\(2x + 10 = 8x - 20\)进行移项,\(10 + 20 = 8x - 2x\),即\(30 = 6x\),解得\(x = \frac{30}{6} = 5\)。

Step3: 求\(y\)的值

因为\(y\)和\(8x - 20\)是邻补角,所以\(y + (8x - 20) = 180\)。将\(x = 5\)代入\(8x - 20\),得\(8\times5 - 20 = 40 - 20 = 20\)。则\(y + 20 = 180\),解得\(y = 180 - 20 = 160\)。

Answer:

\(x = 5\),\(y = 160\)