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受欢迎的代数 >

x+126+x+74=180

解答

x + 126 + x + 74 = 180

解答

x = - 10

求解步骤

x + 126 + x + 74 = 180

对同类项分组

x + x + 126 + 74 = 180

同类项相加:

x + x = 2 x

2 x + 126 + 74 = 180

数字相加:

126 + 74 = 200

2 x + 200 = 180

将

200

到右边

2 x = - 20

两边除以

2

x = - 10

作图

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