(x一5)x4=2x怎么解
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还有一题(20-X)x4+2X=50这五题方程怎么解? ①(20-X)x4+2X=5080-4x+2x=502x=30x=15②7x-(10-x)×5=227x-50+5x=2212x=72x=6③8x+(15-x)×6=1008
2/3x=(88-x)X4/5怎么算2/3x=(88-x)X4/58x=15(88-x)23x=1320x=1320/23全部展开收起
(2x-16)x4/5=x+16方程怎么解(2x-16)x4/5=x+16(2x-16)x4=5(x+16)(两边同乘以5)8x-64=5x+80(去括号)3x=80+64=144(移项合并同类项)x=144/3=48所以方程解为x=48
X+5=(Y+5)X4这个方程怎么解?x=4y+15
2.8x4+5x=17.2怎么解方程?2.8x4+5x=17.211.2+5x=17.25x=17.2-11.25x=6x=6÷5x=1.2
0.6x4-5x=0.8怎么解方程啊0.6x4-5x=0.82.4-5X=0.82.4-0.8=5X1.6/5=XX=0.322.4-0.8=5x1.6=5xx=0.32
2x十(7一x)x4=20x=42x+28-4x=20-2x=-8x=4x=4x=负3分之4答案是4
(1.25x+x)x4=360放程怎么解2.25x*4=3602.25x=360/42.25x=90x=90/2.25x=40
怎么解方程式(x-60)x4+x=395展开4x-240+x=3955x=635x=127
方程(x+5)x4=6x(x-5)怎么解,(x+5)x4=6x(x-5)4x+20=6x-3030+20=6x-4x50=2xx=254x+20=6x-30-2x=-50x=25
2X+[15-x]x4=46怎么算2x+60-4x=4660-2x=462x=60-462x=14x=72x+60-4x=46-2x=-14x=72X+60-4X=462X-4X=46-602X=14X=14/2X=7这是一元一次方程吧2x
22X4+2x=198解88+2×=1982×=198-882×=110×=55
解方程2X+【8-X】X4=26怎么解2X+8×4-4X=26∴-2X=26-32解得:X=32X+【8-X】X4=262X+32-4X=26-2X=26-32X=32x+(8-x)*4=262x+32-4x=262x=6x=3
(x+2)x4=(X-2)X5方程说明方法怎么解乘法分配律4x+2×4=5x-2×54x+8=5x-105x-4x=8+10x=18
2x+(20-X)X4=64,方程怎么解?2x+(20-X)X4=642x+80-4x=644x-2x=80-642x=16x=82x+80-4x=64-2x=-16x=8
(3.5X-2)x4=10X的方程怎么解14x-8=10x4x=8x=214x-8=10x4x=8x=2(3.5X-2)X4=10X14X-8=10X4X=8X=23.5xX4-2X4=10x14x-8=10x14x-10x=84x=8x=
2/3x=(88-x)X4/5的过程是怎么算的先去括号,用分配率解出来,解出是48,又或者左右移项,这个更容易,解出也是48
(x-3/x-2)-(x-2/x-1)=(x-5/x4)-(x-4/x-3)
2x-13x2=90x-2/5x=1.5x4.22/3+130x1/5=120怎么解2x-13x2=90x-2/5x=1.5x4.22/3+130x1/5=120怎么解2x-13×2=902x=90+26x=116÷2x=58
(x+5)x4=(x-5)x5解方程,