3 4x-1+5 3x+2 等于7 2x-1 +1

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/16 06:38:44
34x-1+53x+2等于72x-1+134x-1+53x+2等于72x-1+134x-1+53x+2等于72x-1+13(4x-1)+5(3x+2)=7(2x-1)+112x-3+15x+10=14

3 4x-1+5 3x+2 等于7 2x-1 +1
3 4x-1+5 3x+2 等于7 2x-1 +1

3 4x-1+5 3x+2 等于7 2x-1 +1
3(4x-1)+5(3x+2)=7(2x-1)+1
12x-3+15x+10=14x-7+1
12x+15x-14x=3-10-7+1
13x=-13
x=-1

x=-1
so easy!!

(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几? *-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X || x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? x+2x-3x-4x+5x+6x-7x.-196x+197x+198x-199x-200x 等于多少 5x+1小于等于4x+3,2x-3>x-4,2x+7>6+3x一个算式5x+1小于等于4x+3,{2x-3>x-4 2x+7>6+3x x(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)化简之后等于多少 3x小于4x,5x-4大于等于2+7x 4x-5大于2x+1,5x-9大于x-1 9x+4小于等于6x+1,2x-8小于x-7 (x+1)(x+2)(x+3)(x+4)等于多少 2(x-3)(x+5)-(2x-1)(x+7)小于等于4求x那么x是什么 填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x 利用等式的性质解下列方程,并写出检验过程∶5x-3等于7,4x-1等于3x+3,x-5等于6,8-2x等于1011-x等于10x,4x-3等于2x-9,5+四分之一x等于二分之一x-4,0.8x等于0.7x-1.实在不懂, 先化简,再求值:5x(x的平方+2x+1)-x(x-4)(5x-3),x等于1 求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X 难倒爱因斯坦的九宫格X 7 X | X 8 1 | X X X |X X X | X 4 X | 7 5 9 |X X 5 | 7 X 9 | X 1 4 |5 X X | X X 8 | 3 9 X |3 9 6 | 4 X 7 | X X 2 |X 8 7 | 9 X X | X X X |4 X X | 6 X 5 | X X X | X X 4 | X X 1 |2 X X | X X X | X X X | X 3 X | X X X |X 6 解方程:x-2分之x减去x-6分之x-4等于x-1分之x+1减去x-5分之x-3等于多少 4/7*x加x/2等于1 3/8*x加x/4等于16 1/5*x加x/10等于2 3x/11减x/10等于7 如下9*9宫图如何填x x x 1 x x x 2 9x x 5 x x x x x 4x 6 8 x x x x x xx x x 7 x x 5 x xx 2 x x 6 x x 8 xx x 3 x x 9 x x xx x x x 5 x 1 6 x 4 x x x 3 x x x x 7 x x x x 2 x x x 7/12减x等于4/9 x等于多少?x减1/2等于3/4 x等于多少?5/8加7/12减x等于4/9x等于多少?x减1/2等于3/4x等于多少?5/8加x等于3/4x等于多少?