1)-3x=3-x/9 移項,-3x+x/9=3合併同類項,-26x/9=3係數化為1 ,x=-27/26(2)6y-3/4=4y+5/4 移項,6y-4y=3/4+5/4合併同類項,2y=2係數化為1,y=1(3)3x+4=x/3 移項,3x-x/3=-4合併同類項,8x/3=-4係數化為1, x=-3/2(4)-2x=2-x/6移項,-2x+x/6=2合併同類項,-11x/6=2係數化為1, x=-12/11(5)2.5y+10y=6.5y-3 移項,2.5y+10y-6.5y=-3合併同類項,6y=-3係數化為1,y=-1/2(6)1/2x-1=2/3x+3/2移項,1/2x-2/3x=1+3/2合併同類項,-x/6=5/2係數化為1,x=-15 (7)0.5x-0.7=6.5-1.3x移項,0.5x+1.3x=6.5+0.7合併同類項,1.8x=7.2係數化為1, x=4 .(8) 3x+5=4x+1解:(4-3)x=5-1 x=4 (9) 9-3y=5y+5解: (5+3)y=9-5 8y=4 y=1/2 (10) 3x=5x-4 解:(5-3)x=-4 x=-4
1)-3x=3-x/9 移項,-3x+x/9=3合併同類項,-26x/9=3係數化為1 ,x=-27/26(2)6y-3/4=4y+5/4 移項,6y-4y=3/4+5/4合併同類項,2y=2係數化為1,y=1(3)3x+4=x/3 移項,3x-x/3=-4合併同類項,8x/3=-4係數化為1, x=-3/2(4)-2x=2-x/6移項,-2x+x/6=2合併同類項,-11x/6=2係數化為1, x=-12/11(5)2.5y+10y=6.5y-3 移項,2.5y+10y-6.5y=-3合併同類項,6y=-3係數化為1,y=-1/2(6)1/2x-1=2/3x+3/2移項,1/2x-2/3x=1+3/2合併同類項,-x/6=5/2係數化為1,x=-15 (7)0.5x-0.7=6.5-1.3x移項,0.5x+1.3x=6.5+0.7合併同類項,1.8x=7.2係數化為1, x=4 .(8) 3x+5=4x+1解:(4-3)x=5-1 x=4 (9) 9-3y=5y+5解: (5+3)y=9-5 8y=4 y=1/2 (10) 3x=5x-4 解:(5-3)x=-4 x=-4