中1数学 方程式 小数分数

• 3x
• 5x
• 7x
• 4x

• -4a - 9
• -4a + 9
• 5a - 2
• -2a - 7

• -27x
• -27
• -9x
• 27x

• x = -2

• x = 10

• x = 7

• x = 3

• x = 2

• x = 5

• x = 15

• x = 10

• x = -6

• x = 7

• x = -7

• x = -21

• x = 10

• x = 8

• x = 6

• x = 7

• x = 2

• x = 5

• x = 7

• x = 4

• x = -6

• x = 0

• x = -8

• x = -4

• x = 0

• x = 1

• x = -1

• x = -2