问题
解答题
X+2.5=8.8
16.9÷X=0.13
X÷0.84=2.3
X-18.7=9.63.
答案
X+2.5=8.8,
X+2.5-2.5=8.8-2.5,
X=6.3;
16.9÷X=0.13,
X=16.9÷0.13,
X=130;
X÷0.84=2.3,
X=2.3×0.84,
X=1.932;
X-18.7=9.63,
X=9.63+18.7,
X=28.33.
X+2.5=8.8
16.9÷X=0.13
X÷0.84=2.3
X-18.7=9.63.
X+2.5=8.8,
X+2.5-2.5=8.8-2.5,
X=6.3;
16.9÷X=0.13,
X=16.9÷0.13,
X=130;
X÷0.84=2.3,
X=2.3×0.84,
X=1.932;
X-18.7=9.63,
X=9.63+18.7,
X=28.33.