5x+13x=3.6 3.6x-1.2x=72
3个回答
2.4
30
相关问题
1) 6X-7=6X+72) X+5 3X+7 5X-3----- - ------ = ------4 16 123)
3x-1/6-13-x/3≥7x/2-11(x+3)/5
3x-1/6-13-x/3≥7x/2-11﹙x+3﹚/5
2x+3.6X2=12.7 3(x+3.6)=18.6 x+3.5x=13.5 解方程
2x+3.6X2=12.73(x+3.6)=18.6x+3.5x=13.5解方程
3/4x-3.6=13/5x3/4x-3.6=1又3/5x
解不等式组{3(x-1)+13>5x-2(5-x) {5-(2x+1)<3-6x
(x-2)(x-3)+2(x+6)(x-5)-3(x^2-7x+13)
(X-2)(X-3)+2(X+6)(X-5)-3(X^2+7X+13)
解比例计算题1.1/4:1/3=x:5/6 2.4:5=6:x 3.6:2=x:13 4.3/4=x/10