4(2x+1)-3x=x-12(x-3)
\(\Rightarrow\)8x+4-3x=x-12x+36
\(\Rightarrow\)8x-3x-x+12x=36-4
\(\Rightarrow\)16x=32
\(\Rightarrow\)x=2
Vẫy=2
b,4(x-3)-5=3(x+7)-15x
\(\Rightarrow\)4x-12-5=3x+21-15x
\(\Rightarrow\)4x-3x+15x=21+5+12
\(\Rightarrow\)16x=38
\(\Rightarrow\)x=3
vậy x=3
\(4\left(2x+1\right)-3x=x-12\left(x-3\right)\)
\(\Leftrightarrow8x+4-3x=x-12x+36\)
\(\Leftrightarrow8x-3x-x+12x=36-4\)
\(\Leftrightarrow16x=32\)
\(\Rightarrow x=2\)
\(4\left(x-3\right)-5=3\left(x+7\right)-15x\)
\(\Leftrightarrow4x-12-5=3x+21-15x\)
\(\Leftrightarrow4x-3x+15x=21+12+5\)
\(\Leftrightarrow16x=38\)
\(\Rightarrow x=\frac{19}{8}\)
4(2x +1 ) - 3x = x - 12 ( x - 3 )
=> 8x + 4 - 3x = x - 12x + 36
=> 8x - 3x -x + 12x = 36 - 4
16x = 32
x = 32 : 16
x = 2
b) 4 ( x - 3 ) - 5 = 3 ( x +7 ) -15x
=> 4x - 12 - 5 = 3x + 21 - 15x
=> 4x - 3x + 15x = 21 + 12 + 5
16x = 38
x = \(\frac{38}{16}=\frac{19}{8}\)
4 (2x + 1) - 3x = x - 12 (x - 3)
=> 8x + 4 - 3x = x - 12x + 36
=> 8x - 3x - x + 12x = 36 - 4
=> 16x = 32
x = 32 : 16
x = 2
Vậy x = 2.
4 (x - 3) - 5 = 3 (x + 7) - 15x
=> 4x - 12 - 5 = 3x + 21 - 15x
=> 4x - 3x + 15x = 21 + 12 + 5
=> 16x = 38
x = \(\frac{38}{16}=\frac{19}{8}\)
Vậy x = \(\frac{19}{8}\).
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