4x + 7 = 10x - 35
7 = 6x - 35
6x = 35 + 7
6x = 42
x = 42 : 6
x = 7
Vậy x = 7
# Học tốt #
4x+7=10x-35
4x+7+35=10x
4x+42=10x
42=10x-4x
42=6x
x=42:6
x=7
TK CHO MK NHÉ
CHÚC BN HOK TỐT
\(4x+7=10x-35.\)
\(\Leftrightarrow7+35=10x-4x\)
\(\Leftrightarrow10x-4x=42\)
\(\Leftrightarrow x.\left(10-4\right)=42\)
\(\Leftrightarrow x.6=42\)
\(\Leftrightarrow x=7\)
>Chúc bạn học tốt<
\(4x+7=10x-35\)
\(\Leftrightarrow7+35=10x-4x\)
\(\Leftrightarrow10x-4x=42\)
\(\Leftrightarrow x.\left(10-4\right)=42\)
\(\Leftrightarrow x.6=42\)
\(\Leftrightarrow x=7\)
Vậy \(x=7\)
\(4x+7=10x-35\)
\(\Leftrightarrow-6x=-42\)
\(\Leftrightarrow x=7\)
---!!!
\(4x+7=10x-35\)
\(4x-10x=-35-7\)
\(-6x=-42\)
\(x=-42:\left(-6\right)\)
\(x=7\)
4x+7=10x-35
35+7=10x-4x
10x-4x=35+7
10x-4x=42
x.(10-4)=42
x.6 =42
x =42:6
x =7
