(8分)计算:
计算:(1)(﹣17)+59+(﹣37)(2)﹣43÷5×(3)﹣1.53×0.75+0.53×﹣3.4×0.75(4)(+1.75)﹣|﹣|+(+1.05)+(﹣)﹣(﹣2.2)(5)﹣(1﹣0.5)÷(6).
计算 (1)﹣5﹣(﹣9)+13; (2)|﹣15|﹣(﹣2)﹣(﹣5); (3)9.9﹣(﹣1)+(﹣9.9)+(﹣10); (4)﹣24×(﹣+﹣).
计算:(1)(2)(﹣1)10×2+(﹣2)3÷4.
(1)(﹣3)2×23﹣(﹣4)÷2(2)(﹣+﹣)÷(﹣)(3)﹣14﹣(1﹣0.5)××[10﹣(﹣2)2]﹣(﹣1)3(4)化简求值:3x2y﹣[2xy2﹣2(xy﹣x2y)+xy]+3xy2,(其中x=3,y=﹣)
(1)解方程:9﹣3y=5y+25(2)计算:(﹣3)3÷×(﹣)2﹣2×(﹣)