Respuesta:
1) x = 1
2) x = 4
3) x = 13
4) x = 5
5) x = -2
6) x = 2
7) x = -8
8) x = 12
Explicación paso a paso:
1) 8x + 2 = 6x + 4
8x - 6x = 4 - 2
2x = 2
x = [tex]\frac{2}{2}[/tex]
x = 1
2) 6x - 3 = 5x + 1
6x - 5x = 1 + 3
x = 4
3) [tex]\frac{x-3}{2}[/tex] = 5
x - 3 = 10
x = 10 + 13
x = 13
4) 4 ( x - 3 ) - 7 ( x - 4 ) = 6 - x
4x - 12 - 7x + 28 = 6 - x
4x - 7 x + x = 6 - 28 + 12
-2x = -10
x = [tex]\frac{-10}{-2}[/tex]
x = 5
5) [tex]\frac{2 (x-1)}{3}[/tex] = x
[tex]\frac{2x-2}{3}[/tex] = x
2x - 2 = x
2x - 3x = 2
-x = 2
x = -2
6) [tex]\frac{3x+2}{4}[/tex] - [tex]\frac{x+4}{6}[/tex] = 1
3 ( 3x + 2) - 2 ( x + 4 ) = 12
9x + 6 - 2x - 8 = 12
9x - 2x = 12 + 8 - 6
7x = 14
x = [tex]\frac{14}{7}[/tex]
x = 2
7) 3 - x = - 2x - 5
2x - x = -5 - 3
x = -8
8) [tex]\frac{3x - 16}{x}[/tex] = [tex]\frac{5}{3}[/tex]
3 (3x - 16) = 5x
9x - 48 = 5x
9x - 5x = 48
4x = 48
x = [tex]\frac{48}{4}[/tex]
x = 12
Espero te sirva ;), no le meti letra porque de por si con el procedimiento ya es lioso con la explicación lo seria mas
Saludos!
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Respuesta:
1) x = 1
2) x = 4
3) x = 13
4) x = 5
5) x = -2
6) x = 2
7) x = -8
8) x = 12
Explicación paso a paso:
1) 8x + 2 = 6x + 4
8x - 6x = 4 - 2
2x = 2
x = [tex]\frac{2}{2}[/tex]
x = 1
2) 6x - 3 = 5x + 1
6x - 5x = 1 + 3
x = 4
3) [tex]\frac{x-3}{2}[/tex] = 5
x - 3 = 10
x = 10 + 13
x = 13
4) 4 ( x - 3 ) - 7 ( x - 4 ) = 6 - x
4x - 12 - 7x + 28 = 6 - x
4x - 7 x + x = 6 - 28 + 12
-2x = -10
x = [tex]\frac{-10}{-2}[/tex]
x = 5
5) [tex]\frac{2 (x-1)}{3}[/tex] = x
[tex]\frac{2x-2}{3}[/tex] = x
2x - 2 = x
2x - 3x = 2
-x = 2
x = -2
6) [tex]\frac{3x+2}{4}[/tex] - [tex]\frac{x+4}{6}[/tex] = 1
3 ( 3x + 2) - 2 ( x + 4 ) = 12
9x + 6 - 2x - 8 = 12
9x - 2x = 12 + 8 - 6
7x = 14
x = [tex]\frac{14}{7}[/tex]
x = 2
7) 3 - x = - 2x - 5
2x - x = -5 - 3
x = -8
8) [tex]\frac{3x - 16}{x}[/tex] = [tex]\frac{5}{3}[/tex]
3 (3x - 16) = 5x
9x - 48 = 5x
9x - 5x = 48
4x = 48
x = [tex]\frac{48}{4}[/tex]
x = 12
Espero te sirva ;), no le meti letra porque de por si con el procedimiento ya es lioso con la explicación lo seria mas
Saludos!