方程的一些题,快心算5x + 12x = 19a - 8a = 5.7b + 6.2b =16x - 2x = 32a + 9a = 8.3b - 5.2b =20.3t + 12.5t = 4.3x - 2.1x = 7.5a - 3.4a = x 丶x = 4a × 5 =
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![方程的一些题,快心算5x + 12x = 19a - 8a = 5.7b + 6.2b =16x - 2x = 32a + 9a = 8.3b - 5.2b =20.3t + 12.5t = 4.3x - 2.1x = 7.5a - 3.4a = x 丶x = 4a × 5 =](/uploads/image/z/811072-64-2.jpg?t=%E6%96%B9%E7%A8%8B%E7%9A%84%E4%B8%80%E4%BA%9B%E9%A2%98%2C%E5%BF%AB%E5%BF%83%E7%AE%975x++%2B+12x+%3D+++++++++19a++-++8a++%3D+++++++++++++5.7b++%2B+6.2b+%3D16x++-++2x++%3D++++++++32a++%2B++9a+%3D+++++++++++++8.3b++-++5.2b+%3D20.3t++%2B++12.5t++%3D++++++++++++4.3x++-++2.1x+%3D++++++++++7.5a++-+3.4a+%3D+x+%E4%B8%B6x++%3D++++++++++++4a++%C3%97+5+%3D)
方程的一些题,快心算5x + 12x = 19a - 8a = 5.7b + 6.2b =16x - 2x = 32a + 9a = 8.3b - 5.2b =20.3t + 12.5t = 4.3x - 2.1x = 7.5a - 3.4a = x 丶x = 4a × 5 =
方程的一些题,快
心算
5x + 12x = 19a - 8a = 5.7b + 6.2b =
16x - 2x = 32a + 9a = 8.3b - 5.2b =
20.3t + 12.5t = 4.3x - 2.1x = 7.5a - 3.4a =
x 丶x = 4a × 5 = 6a + 5a =
12y + 8y = 3x × 0 = a×a×a =
9.4x + 6.6x = 16t - 13.4t = 12x -8.3x =
2.笔算(解下列方程)
10x - 25 =30 0.5x + 28 =52 8x -36 = 42
9.25 + 2x =22.35 3.5x - 6 =4.5 6.5x + 9 =28.5
方程的一些题,快心算5x + 12x = 19a - 8a = 5.7b + 6.2b =16x - 2x = 32a + 9a = 8.3b - 5.2b =20.3t + 12.5t = 4.3x - 2.1x = 7.5a - 3.4a = x 丶x = 4a × 5 =
心算
5x + 12x =17x 19a - 8a = 11a 5.7b + 6.2b =11.9b
16x - 2x = 14x 32a + 9a = 41a 8.3b - 5.2b =3.1b
20.3t + 12.5t =32.8t 4.3x - 2.1x =2.2x 7.5a - 3.4a =4.1a
x 丶x = 4a × 5 = 20a 6a + 5a =11a
12y + 8y =20y 3x × 0 = 0 a×a×a =a³
9.4x + 6.6x =16x 16t - 13.4t = 2.6t 12x -8.3x =3.7x
2.笔算(解下列方程)
10x - 25 =30 x=5.5 0.5x + 28 =52 x=48 8x -36 = 42 x=39/4
9.25 + 2x =22.35 x=6.55 3.5x - 6 =4.5 x=3 6.5x + 9 =28.5 x=3