10X+6-6Ⅹ=5X-6+2
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6,12,18,24,30,36,42,48,54,60,66,72,78,84,90,96
咨询记录 · 回答于2023-02-15
10X+6-6Ⅹ=5X-6+2
答案10,方程的解x=20,解:(10-6)x+6=5x-(6-2),4x+6=5x-4,4x+6-4x=5x-4-4x,6=x-4,6+4=x-4+4,10=x,x=10,利用等式的性质解方程
答案10,方程的解x=10,解:(10-6)x+6=5x-(6-2),4x+6=5x-4,4x+6-4x=5x-4-4x,6=x-4,6+4=x-4+4,10=x,x=10,利用等式的性质解方程
答案10,方程的解x=10,解:(10-6)x+6=5x-(6-2),4x+6=5x-4,4x+6-4x=5x-4-4x,6=x-4,6+4=x-4+4,10=x,x=10,利用等式的性质解方程
利用等式的性质解方程
69 .1×99-6 .91×90+6. 9×100简便运算
这个题的截图发出看看看
69.1x99-6.91x90+6.9x100 =69.1x99-69.1x9+6.9x100 =69.1x(99-9)+690 =69.1x90+690 =6219+690 =6909
28x88+22x88-56x5 =88x(28+22)-56x5 =88x50-28x2x5 =44x2x50-28x10 =4400-280 =4129
28x88+22x88-56x5 =88x(28+22)-56x5 =88x50-28x2x5 =44x2x50-28x10 =4400-280 =4120
32x0.25x(3.75➗3) =8x4x0.25x1.25 =(8x1.25)x(4
32x0.25x(3.75➗3) =8x4x0.25x1.25 =(8x1.25)x(4x0.25) =10x1 =10
还有一题呀 ,100以内既是二的倍数 又是三的倍数有哪些呀
2与3的公倍数
6,12,18,24,30,36,42,48,54,60,66,72,78,84,90,96
好了 再见 辛苦了
不幸苦,再见