C) 7u-6(2+c)=d)121-(3+y)17=e)25+2[12-3(x-7)]=f)[5-4(x-9)]-40=g){[25x-3(1-y)-z}=

Question

Математика: C) 7u-6(2+c)=d)121-(3+y)17=e)25+2[12-3(x-7)]=f)[5-4(x-9)]-40=g){[25x-3(1-y)-z}=

katyaprodan · Answer

c) 7u-12-6c=-6c+7u-12 7c-12-6c=c-12d) 121-51-17y=70-17ye) 25+2(12-3x+21)=25+24-6x+42=91-6xf) (5-4x+36)-40=41-4x-40=1-4xg) (25x-3+3y-z)=25x+3y-z-3...

C) 7u-6(2+c)=
d)121-(3+y)17=
e)25+2[12-3(x-7)]=
f)[5-4(x-9)]-40=
g){[25x-3(1-y)-z}=