2x+5(50-x)=48 14-2(x+3)=4 12+2(3x-5)=14
熱心網友
2x+5(50-x)=4814-2(x+3)=412+2(3x-5)=14不會是解方程吧?第1題:2x+5(50-x)=48即2x+250-5x=48-3x+202=0x=202/3=67又1/3第2題:14-2(x+3)=414-2x-6=42x=4x=2第3題:12+2(3x-5)=1412+6x-10=146x=12x=2
熱心網友
不是吧,這種問題也有?小朋友,要努力啊!頂樓上的
熱心網友
第1題:2x+5(50-x)=48即2x+250-5x=48-3x+202=0x=202/3=67又1/3第2題:14-2(x+3)=414-2x-6=42x=4x=2第3題:12+2(3x-5)=1412+6x-10=146x=12x=2
熱心網友
第一題x=67又1/3second is 2 第three題is 2
熱心網友
2x+5(50-x)=48 2x+250-5x=48-250 2x-5x=48-250 -3x=-202 x=202/3(2)14-2(x+3)=4 14-2x-6=4 -2x=4-14+6 -2x=-4 x=2(3)12+2(3x-5)=14 12+6x-10=14 6x=14-12+10 6x=12 x=2
熱心網友
1 2x+5(50-x)=48 2x+250-5x=48 202=3x x=202/32 14-2(x+3)=4 14-2x-6=4 2x=4 x=23 12+2(3x-5)=14 12+6x-10=14 6x=12 x=2
熱心網友
2x+5(50-x)=48 14-2(x+3)=4 12+2(3x-5)=14解:2x+250-5x=48 14-2x-6=4 12+6x-10=143x=202 2x=4 6x=12x=202/3 x=2 x=2
熱心網友
2x+5(50-x)=48 14-2(x+3)=4 12+2(3x-5)=14解:2x+250-5x=48 14-2x-6=4 12+6x-10=14 3x=202 2x=4 6x=12 x=202/3 x=2 x=2
熱心網友
2x+5(50-x)=48 12+2(3x-5)=14解:2x+250-5x=48 解:12+6x-10=14 250-48=5x-2x 2+6x=14 3x=202 x=12/6 x=67又1/3 x=2 14-2(x+3)=4解: 14-2x-6=4 14-6-2x=4 2x=8-4 x=2
熱心網友
2x+5(50-x)=48 14-2(x+3)=42x+250-5x =48 14-2x-6 =4 -3x =48-250 -2x=4-14 -3x =-202 -2x=-12 x=202/3 x=612+2(3x-5)=1412+6x-10 =14 6x =14-12 6x =2 x =1/3