5x+1(30-x)=98
2个回答
5x+30-x=98
4x=98-30
x=68/4
x=17
相关问题
x+3x-(9x+30x)=98
X+Y+X-1=30 X*0+Y*4+(-1)*(X-1)=98怎么解
1X1+2X2+3X3+4X4+5X5.+98X98+99X99+100X100=?
一道数学简算题(1十0.5)x(1-0.5)x(1+1/3)x(1-1/3)x……x(1+1/98)x(1-1/98)x
1/5X 30=3/5X打错了 1/5X +30=3/5X
1.5x+5=x+30 x=?
100X100—99X99+98X98+...+2X2—1X1
2元1次方程4x+5y=98,4x+2=5y,求x=,y= 2元1次方程4x+5y=98,4x+2=5y,求x=,y=”
(X-30)*62.5%+30=2(X-30)*(1-62.5%)Q
几道简便计算题(1)9.81X0.1+0.5X98.1+0.049X981=(2)7.8÷[(9-8.98)X2.5}