2.5x-0.9x+48解方程

温翔鸦4556解出下列方程 -
饶魏欣19447767558 ______ (1)3x+6x=81 9x=81 x=9 (2)6x-2x=3.6 4x=3.6 x=0.9 (3)2.5x-2.4x=82 0.1x=82 x=820 (4)0.2x+0.27=51.7 0.2x=51.7-0.27 0.2x=51.43 x=257.15 (5)6.98-x=6.7 -x=6.7-6.98 -x=-0.28 x=0.28 (7)3.5x+x=22.5 4.5x=22.5 x=5 (8)32除以4x=...

温翔鸦45562.5x - 0.7x=14.4解答 -
饶魏欣19447767558 ______ 2.5x-0.7x=14.41.8x=14.4 x=14.4÷1.8 x=8 很高兴为您解答,祝你学习进步!【学习宝典】团队为您答题.有不明白的可以追问!如果您认可我的回答.请点击下面的【选为满意回答】按钮,谢

温翔鸦455621.6*4.8 - 0.16*4=48简便方法 -
饶魏欣19447767558 ______ 21.6*4.8-0.16*4 =21.6*3*1.6-1.6*0.4 =1.6*(21.6*3-0.4) =1.6*64.4 =103.04

温翔鸦45566.3 - 0.5x=4.8+2.5x -
饶魏欣19447767558 ______ 6.3-0.5x=4.8+2.5x 解:2.5x+0.5x=6.3-4.8 3x=1.5 x=0.5 你好,本题已解答,如果满意,请点右上角“采纳答案”,支持一下.

温翔鸦4556解方程:0.2 - x/0.3=1 - 3x/2.5+1.5 -
饶魏欣19447767558 ______[答案] 0.2-x/0.3=1-3x/2.5+1.5 0.2*0.3-x=0.3-0.9x/2.5+0.45 0.06*2.5-2.5x=0.75*2.5-0.9x 1.6x=-1.725 x=-1.078125

温翔鸦4556求未知数x.0.9x+2.3=6.8 -
饶魏欣19447767558 ______ 0.9x+2.3=6.80.9x=6.8-2.30.9x=4.5 x=4.5÷0.9 x=5

温翔鸦4556解出下列方程3x+6x=816x - 2x=3.62.5x - 2.4x=820.2x+0.27=51.76.98 - x=6.73.5x+x=22.532÷4x=48*2.5 - 2x=13.64*(x+1)=6x - 0.72x=0.0840.5*3+4x=9.57x=3x+190.4... -
饶魏欣19447767558 ______[答案] (1)3x+6x=819x=81x=9(2)6x-2x=3.64x=3.6x=0.9(3)2.5x-2.4x=820.1x=82x=820(4)0.2x+0.27=51.70.2x=51.7-0.270.2x=51.43x=257.15(5)6.98-x=6.7-x=6.7-6.98-x=-0.28x=0.28 (7)3.5x+x=22.54.5x=22.5x=5(8)32除以4x=...

温翔鸦4556求解答~简便运算 -
饶魏欣19447767558 ______ 解: 4.7*3.4+0.47*53+4.7*1.3 = 4.7*3.4+4.7x0.1*53+4.7*1.3 =4.7x(3.4+5.3+1.3 ) =4.7x10 =47 0.25*0.9÷0,·25÷0.9 = (0.25*0.9)÷(0,·25x0.9) =1 0,25*0,9÷0,25*0,9 = 0.25*0.9÷(1/4)x0.9 = 0.25*0.9x4x0.9 =0.81 5,3*2.5+25*0,48-0,25 =5.3x2.5+2.5x10x0.48-2.5x0.1 =2.5x(5.3+4.8-0.1) =2.5x10 =25

温翔鸦4556解方程:已知乙数是甲数的0.6倍,甲、乙两数的和是48,求两数各是多少 -
饶魏欣19447767558 ______ 解设甲数是X,乙数是0.6X X+0.6X=481.6X=48 X=300.6X=0.6*30=18 甲数是30,乙数是18