РЕШИТЕ УРАВНЕНИЕ
1)-2*(х-4)+4*(х-2)=0
2)3(у-6)-12(у-1.5)=18
3)х+(х+1.5)+(х+2)=23
1)-2*(х-4)+4*(х-2)=0
2)3(у-6)-12(у-1.5)=18
3)х+(х+1.5)+(х+2)=23
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Answers & Comments
-2х + 8 + 4х - 8 = 0
2х = 0
х = 0
#2
3у - 18 - 12у + 18 = 18
-9у = 18
у = -2
#3
х + х + 1.5 + х + 2 = 23
3х = 23 - 1.5 - 2
3х = 19.5
х = 6,5