Question

6.5-3/11(X-7)=1/2怎么解方程

Answer 1

6.5-3/11(X-7)=1/2
展开括号 6.5 - 3X / 11 + 3*7 / 11 = 0.5
左右变换 6.5 + 21 / 11 - 0.5 = 3X / 11
计算 6 + 21 / 11 = 3X / 11
两侧都乘十一 66 + 21 = 3X
计算 87 = 3X
两侧都除三 X = 29

Answer 2

2y+3=y-2
2y-y=-2-3
y=-5
0.5-0.7=6.5-1.3x
-6.5-0.2=-1.3x
-6.7=-1.3x
x=67/13
3x-7+4x=6x-2
7x-7=6x-2
x=5
-0.75x+2=13-0.25x
-3x+8=52-x
-2x=44
x=-22
2y+3=y-2
2y-y=-2-3
y=-5

Answer 3

6.5-3/11(X-7)=1/2
13/2－（3X/11-21/11)=1/2
13/2-3x/11＋21/11＝1/2
13/2－1/2＋21/11＝3x/11
184/22=3x/11
x=92/3

Answer 4

bcvbcxb

Answer 5

6.5-3/11(X-7)=1/2
3/11(X-7)=6.5-0.5
3/11(X-7)=6
X-7=6*11/3
X-7=22
X=22+7
X=29