(1)x-2⼀2=2x+3⼀5; (2)x+1⼀2-x-1⼀4=1; (3)2⼀7(3x+7)=2-3⼀2x;去分母

2024-12-16 01:06:48
推荐回答(1个)
回答1:

(1)x-2/2=2x+3/5;
5(x-2)=2(2x+3)
5x-10=4x+6
x=16
(2)x+1/2-x-1/4=1;
2(x+1)-(x-1)=4
2x+2-x+1=4
x=1
(3)2/7(3x+7)=2-3/2x;
4(3x+7)=28-21x
12x+28=28-21x
33x=0
x=0