\(1)x+23-19+48=-50\)
\(\Rightarrow x+23-19=-50-48\)
\(\Rightarrow x+23-19=-98\)
\(\Rightarrow x+23=-98+19\)
\(\Rightarrow x+23=-79\)
\(\Rightarrow x=-79-23=-102\)
\(2)3x-27-21+84=12\)
\(\Rightarrow3x-27-21=12-84\)
\(\Rightarrow3x-27-21=12+(-84)\)
\(\Rightarrow3x-27-21=-72\)
\(\Rightarrow3x-27=-72+21\)
\(\Rightarrow3x-27=-51\)
\(\Rightarrow3x=-51+27\)
\(\Rightarrow3x=-24\)
\(\Rightarrow x=-24\div3=-8\)
Chúc bạn học tốt ~
\(a,x+23-19+48=-50\)
\(\Rightarrow x=-50-23+19-48\)
\(\Rightarrow x=-102\)
\(3x-27-21+84=12\)
\(3x=12-84+21+27\)
\(\Leftrightarrow3x=-24\)
\(\Leftrightarrow x=-8\)
\(1.x+23-19+48=-50\)
\(\Leftrightarrow x+4=-50-48\)
\(\Leftrightarrow x+4=-98\)
\(\Leftrightarrow x=-98-4\)
\(\Leftrightarrow x=-102\)
\(\text{Vậy }x=-102\)
\(2.3x-27-21+84=12\)
\(\Leftrightarrow3x-48=12-84\)
\(\Leftrightarrow3x-48=-72\)
\(\Leftrightarrow3x=-72+48\)
\(\Leftrightarrow3x=-24\)
\(\Leftrightarrow x=-24\div3\)
\(\Leftrightarrow x=-8\)
\(\text{Vậy }x=-8\)