Решите уравнение.
а) 5x-6-(3-2x)=5.5
б)0.3y+2.6-(1.2+3.5)=1.8
в)-9x+(14+6x)=11-x
г)3.4y-4-(9.4y+2)=4y-3
а) 5x-6-(3-2x)=5.5
б)0.3y+2.6-(1.2+3.5)=1.8
в)-9x+(14+6x)=11-x
г)3.4y-4-(9.4y+2)=4y-3
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Answers & Comments
7х-9=5.5
7х=14.5
б) 0.3у+2.6-1.2-3.5=1.8
0.3у-2.1=1.8
0.3у=3.9
у= 3.9/0.3
у= 13
-9х+14+6х=11-х
-9х+6х+х=11-14
-2х=-3
х=3/2
х=1.5
3.4у-4-9.4у-2=4у-3
3.4у-9.4у-4у=-3+4+2
-10у=3
у= - 3/10 = -0.3