(3x+12)/4=2-(5x-7)/3
2个回答
两边乘12
3(3x+12)=24-4(5x-7)
9x+36=24-20x+28
20x+9x=24+28-36
29x=16
x=16÷29
x=16/29
相关问题
2/7x(-5/12)-5/7x5/12-5/3x1/4
用线性代数解x1+3x2+5x3+7x4 =12,3x1+5x2+7x3+x4=0,5x1+7x2+x3+3x4=1,7
12-2x=3x+2/3x+3=2x+5/7x+4=8x
X/12+5=4X/3 (3X+2)/4-(5X+1)/2=2 7X+5=6(X+1)
求未知数x的值(1)0.36×5-[3/4]x=[3/5](2)12.5-2x=4x+7.1(3)(2x+5):3=12
5/12x-x/4=1/3 0.5x-0.7=6.5-1.3x 3(x-7)+5(x-4)=15 (y-1)/2=2-(
-1/3(6-5x)=8x-2 / 2=2x+3 / 5x+1 /2 - x-1 / 4 =12/7(3x+7)=2 -
4x+7x=150-7 19x-5(3x-4)=24 2(4x-3)+(15-2x)=24+12
2※3=2+3+4,5※4=5+6+7+8=26,x※3=12,x=?1
解方程.(1)X- 1 5 X= 3 8 (2)X× 4 7 × 7 12 =3(3)X+ 3 5 X= 3 5 × 2