几道数学题解方程 3（4x+5）=2（4x+3）+1 y+2/4-2y-1/6=1 3/2【2（x-1/2）+2/3】=5x

题目

几道数学题解方程 3（4x+5）=2（4x+3）+1 y+2/4-2y-1/6=1 3/2【2（x-1/2）+2/3】=5x
几道数学题解方程
1.3（4x+5）=2（4x+3）+1
2.y+2/4-2y-1/6=1
3.3/2【2（x-1/2）+2/3】=5x
不给答案就别说话

答案

1.3（4x+5）=2（4x+3）+112x+15=8x+6+14x=-8x=-22.y+2/4-2y-1/6=14y-2y^2+2=7/6(4-2y)12y-6y^2+6=14-7y6y^2-19y+8=0(2y-1)(3y-8)=0y=1/2或8/33.3/2【2（x-1/2）+2/3】=5x3/2（2x-1+2/3）=5x3x-1/2=5x2x=-1/2x=-1/4...