12X-(3X/7)*12=120
3个回答
12X-(3X/7)*12=120
12X-36/7X=120
(12-36/7)X=120
48/7X=120
48/7X÷48/7=120÷48/7
X=17.5
相关问题
(x2+3x+12)(x2+7x+12)-120
因式分解(x²+3x+2)(x²+7x+12)-120
3x+12×6=120
x+12=(5x+12)X 7分之3
12-X/X^3-7X^2+12X怎么做
(4/7x-12)+3/2(4/7X-12)=X 解出来
x^:12=x:(7-x) x^:12=x:(7-x)
11/12X3/7+4/7X11/12+11/12=?(要简便方法计算)
2.7x=3(x-12)
7x+12=8(x-3)