一元一次方程计算 试卷A.doc

7(2x-1)-3(4x-1)=4(3x+2)-1 (5y+1)+ (1-y)= (9y+1)+(1-3y) 20%+(1-20%)(320-x)=32040%2(x-2)+2=x+1 2(x-2)-3(4x-1)=9(1-x) 11x+64-2x=100-9x 15-(8-5x)=7x+(4-3x) 3(x-7)-29-4(2-x)=22 (-1)-2- =2 2x-10.3x=15 0.52x-(1-0.52)x=80 3x+7=32-2x 3x+5(138-x)=540 3x-7(x-1)=3-2(x+3) 18x+3x-3=18-2(2x-1) 3(20-y)=6y-4(y-11) 2 -( -1)=5 34(5y-1)-8=6 ; (x1)3(x1)=13x;(x2)2(4x1)=3(1x). 1 (2x+14)=4-15x = +=3+2y1 2x-10.3x=1511x+64-2x=100-9x2x-10.3x=153x+7=32-2x 70%x+(30-x)55%=3065% ;|x+5|=2A4