Ответ:
\(5x-(3x-1)=23\)
\(5x-3x+1=23\),
\(2x=22\),
\(x=11\).\(4-(5-x)-(3x-6)=0\)
\(4-5+x-3x+6=0\),
\(-2x+5=0\),
\(-2x=-5\),
\(x=2.5\).\(3(y-5)-4(y-4)=8\)
\(3y-15-4y+16=8\),
\(-y+1=8\),
\(-y=7\),
\(y=-7\).\(8(y-5)+2(5y-4)=10\)
\(8y-40+10y-8=10\),
\(18y-48=10\),
\(18y=58\),
\(y=\frac{29}{9}\).
Ответ: а) \(x=11\); б) \(x=2.5\); в) \(y=-7\); г) \(y=\frac{29}{9}\).
