《2025年小学数学计算高手每日10分钟五年级数学下册苏教版》

解方程。
$14x + 5x - 3.2x = 158$ $0.7(x + 0.9) = 42$ $7.2×3 - 5x = 3.4$
$0.42×5 - 2x = 0.7$ $1.3x + 7.2 = 12.4$ $x + 3.7x = 37.6$
$10x - 8(x + 5×2) = 76$ $x + 5.7 = 9.6$ $0.9x + 8 = 16.1$
$7.5x + 11.3 = 56.3$ $2x + 73 = 75.6$ $3x + 4x = 39.2$
$16.5 - x = 12.54$ $4.56 - 2x = 2.36$ $18.5x + 3 = 40$

答案： $P_{(x)} \ x = 10 \ x = 0.7 \ x = 78 \ x = 6 \ x = 3.96 \ x = 59.1 \ x = 4 \ x = 3.9 \ x = 1.3 \ x = 1.1 \ x = 3.64 \ x = 8 \ x = 9 \ x = 5.6 \ x = 2$