4x - 15 = -75 - x
4x + x = -75 + 15
5x = -60
x = -60/5
x = -12
\(4\times x-15=-75-x\)
\(\Leftrightarrow4x-15+75=-x\)
\(\Leftrightarrow4x+60=-x\)
\(\Leftrightarrow60=-x-4x\)
\(\Leftrightarrow60=-5x\)
\(\Leftrightarrow x=-12\)
Vậy \(x=-12\)
Trả lời:
\(4x-15=-75-x\)
\(\Leftrightarrow4x+x=-75+15\)
\(\Leftrightarrow5x=-60\)
\(\Leftrightarrow x=-12\)
Vậy\(x=-12\)
Hok tốt!
Good girl
\(4.x-15=-75-x\)
\(\Rightarrow4x+x=-75+15\)
\(\Rightarrow5x=-50\)
\(\Rightarrow x=-50:5\)
\(\Rightarrow x=-10\)
Vậy x=-10
Chúc bn học tốt
4x - 15 = - 75 - x
4x + x = - 75 + 15
5x = - 60
x = - 12
Vậy x = - 12
