1.4x+3=3x+5 2.12-4x=3x-21.4x+3=3x+5 2.12-4x=3x-2 3.3(2x-1)=4(3-x) 4.12-2(3x-4)=x 5.13-2(2x-3)=5-(x-2)
问题描述:
1.4x+3=3x+5 2.12-4x=3x-2
1.4x+3=3x+5 2.12-4x=3x-2 3.3(2x-1)=4(3-x) 4.12-2(3x-4)=x 5.13-2(2x-3)=5-(x-2)
答
X=2
X=2
X=1.5
X=20/7
X=4
答
4x+3=3x+5 4x-3x=5-3x=2 2. &n...