Question

tìm x,y thuộc z bít:

1)25-(-2+x+25)=(-10-379)+(-379-5)

Answer 1

        \(25-\left(-2+x+25\right)=\left(-10-379\right)+\left(-379-5\right)\)

\(\Leftrightarrow\)\(125+2-x-25=-10-379-379-5\)

\(\Leftrightarrow\)\(102-x=-773\)

\(\Leftrightarrow\)\(x=102+773=875\)

Answer 2

\(25-\left(-2+x+25\right)=\left(-10-379\right)+\left(-379-5\right)\)

\(25+2-x-25=\left(-389\right)+\left(-384\right)\)

\(25+2-x-25=-773\)

\(27-x=-773+25\)

\(27-x=-748\)

\(x=27-\left(-748\right)=775\)

\(x=798-3=796\)