уравнения.....3(у-5)-2(у-4)=8-5(5-х)-4х=18
первое.
3(у-5)-2(у-4)=8
3у - 15 - 2у + 8 = 8
у = 15
второе.
-5(5-х)-4х=18
-25 + 5x - 4x = 18
x = 43
3у-15-2у+8=8
у=15
-25+5х-4х=18
х=25+18
х=43.
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первое.
3(у-5)-2(у-4)=8
3у - 15 - 2у + 8 = 8
у = 15
второе.
-5(5-х)-4х=18
-25 + 5x - 4x = 18
x = 43
3(у-5)-2(у-4)=8
3у-15-2у+8=8
у=15
-5(5-х)-4х=18
-25+5х-4х=18
х=25+18
х=43.