Question

2.8x=(3.6x*5/6)+24怎样解方程

Answer 1

2.8X=3.6X*5/6+24(3.6与分母6相约,即0.6与1)

2.8X=0.6X*5+24

2.8X=3X+24

-0.2X=24

X=24/-0.2

X=24/-(1/5)(除以一个分数,等于乘以这个数的倒数)

X=24*(-5)

X=-(24*5)

X=-120