已知3x=4,且(y-2x+1)2+z−3=0,则x+y+z的值是_.
问题描述:
已知
=4,且(y-2x+1)2+
3
x
=0,则x+y+z的值是______.
z−3
答
∵
=4,
3
x
∴x=64,
根据题意得:
,
y−2x+1=0 z−3=0 x=64
解得:
,
x=64 y=127 z=3
则x+y+z=194.
故答案是:194.