\(26-3x=13\)
\(3x=16-13\)
\(3x=3\)
\(x=3:3\)
\(x=1\)
26-3x=-13
<=>-3x=-13-26
<=>-3x=-39
<=> x=13
vậy x=13
26-3x=-13
-3x =-13-26
-3x =-39
3x =39
x =39:3
x =13
26 - 3x = -13
3x = 26 - (-13)
3x = 39
x = 39 : 3
x = 13
\(26-3x=13 \)
\(3x=16-13\)
\(3x=3\)
\(x=3:3\)
\(x=1\)
\(26-3x=-13 \)
\(-3x=-13-26\)
\(-3x=-39 \)
\(x=13\)
\(Vậy x=13\)
26 - 3x = -13
3x = 26 + 13
3x = 39
x = 39 : 3
x = 13