x+120=5x 急,
7个回答
120=5x-x
120=4x
x=30
相关问题
X-0.5X+120=0.5X+120
120/[x*(1-1/5)]=120/x+5
120/(x-y)+120/(x+y)=160/y 怎样化简成x=2y和x=-1/2y 急!急!在线等!
(120-50x)/5=(50x-5x)/(50+5)+(120-50x)/50 求结果
x²=(x-5)²+120² ,
120-4(x+5)=25 120-4(x+5)=25
解2个方程:(120-50X)/5 =2*(50X-5X)/(50+5)+(120-50X)/50 和t=X+(120-
5x+{120-x}*3=120 怎么解
用竖式计算2.45x0.120.78x1.5快点急
解方程70—2x+4x=120急急急急急急急急急,快快快快快快快