分类：教育/科学-学习帮助
问题：解方程!3/4(x
  3/4 (x-1) - 2/5(3x+2) = 1/10-3/2(x-1)
求解
回答：(3/4)(x-1) - (2/5)(3x+2) = (1/10) - (3/2)(x-1)
--->15(x-1) - 8(3x+2) = 2 - 30(x-1)
--->45(x-1) - 8(3x+2) = 2
--->45x-45 - 24x-16 = 2
--->21x = 63
---> x = 3