初一数学上册解方程专项练习题 7 x 1 —x +—=— 0 .7 x +0 .5 =3 .6 +6 .2 x 3 6 6 2 1 —+8 x =2 +—x 4 (x -5 )+6 (x +9 )=2 0 3 4 1 4 —(3 x +5 )=—x +8 7 x -2 (1 7 -x )=-9 2 5 y +1 y +3 ——=5 -—— 3 .5 x -9 .5 (x +8 )=2 5 3 5 初一数学上册解方程专项练习题 1 2 —(5 -4 x )=—(5 x -3 ) 8 (4 x -8 )=7 3 5 5 x 1 —x -—=— 0 .7 x -0 .8 =2 .8 +6 x 3 4 9 8 1 —-9 x =6 +—x 8 (x -7 )+8 (x +5 )=1 4 7 3 1 2 —(7 x -2 )=—x -3 3 x +7 (1 -x )=-5 5 5 初一数学上册解方程专项练习题 y -2 y +3 ——=1 -—— 0 .5 x -4 (x +7 )=2 5 3 5 1 2 —(2 -2 x )=—(2 x -2 ) 6 (6 x +9 )=1 3 3 7 5 x 1 —x +—=— 0 .9 x -0 .4 =3 .8 -8 .2 x 3 2 6 8 1 —+9 x =1 -—x 5 (x +6 )+8 (x -7 )=9 5 6 初一数学上册解方程专项练习题 1 1 —(7 x +9 )=—x -8 9 x -8 (2 0 -x )=-4 7 5 y +1 y -2 ——=4 -—— 2 .5 x -4 .5 (x +5 )=1 5 2 6 1 2 —(3 +4 x )=—(5 x -5 ) 9 (8 x +5 )=1 4 5 7 7 x 1 —x -—=— 0 .8 x +0 .2 =8 .6 +3 x 6 8 9 初一数学上册解方程专项练习题 8 1 —+4 x =4 -—x 4 (x -6 )+8 (x +1 )=1 6 5 7 1 3 —(5 x+2 )=—x -3 2 x +3 (1 6 -x )=-8 4 5 y -2 y +1 ——=9 +—— 5 x +4 (x -5 )=1 5 2 6 1 2 —(1 +2 x )=—(2 x -3 ) 8 (7 x -1 )=2 0 4 9 初一数学上册解方程专项练习题 5 x 1 —x -—=— 0 .1 x -0 .1 =1 .3 -0 .4 x 6 4 3 4 1 —-2 x =5 -—x 2 (x -6 )+7 (x +3 )=3 5 8 1 2 —(5 x -6 )=—x +9 6 x +6 (1 8 +x )=-9 7 5 y +2 y -2 ——=5 -—— 2 x +1 .5 (x -2 )=2 0 2 6 初一数学上册解方程专项练习题 1 2 —(5 +2 x )=—(3 x -1 ) 2 (7 x -6 )=2 8 9 5 x 1 —x +—=— 0 .1 x...