3.2x+2.2x=10.8 7x-3x=24 x+6.2x=14.4 x-0.84x=21.6 急
问题描述:
3.2x+2.2x=10.8 7x-3x=24 x+6.2x=14.4 x-0.84x=21.6 急
答
3.2x+2.2x=10.8 7x-3x=24 x+6.2x=14.4 x-0.84x=21.6
5.4x=7.87x=30.2x=13.56=21.6
x=5.4
答
①5.4x=10.8 x=2
②4x=24 x=6
③7.2x=14.4 x=2
④0.16x=21.6 x=135
答
X=2,X=6 X=2,X=135