Respuesta:
Expresar en lenguaje algebraico y resolver los problemas !
1>
[tex]2x + 1 = 9[/tex]
[tex]2x = 9 - 1[/tex]
[tex]2x = 8[/tex]
[tex]x = 8 \div 2[/tex]
[tex]x = 4[/tex]
2>
[tex]x + (x + 1) + (x + 2) = 21[/tex]
[tex]3x + 3 = 21[/tex]
[tex]3x = 21 - 3[/tex]
[tex]3x = 18[/tex]
[tex]x = 18 \div 3[/tex]
[tex]x = 6[/tex]
Remplazamos !
x = 6
x +1 → 6 +1 = 7
x +2 → 6 + 2 = 8
Sumamos cantidades
6 + 7 + 8 = 21
Los números son 6 ; 7 ; 8
Saludos
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Verified answer
Respuesta:
Expresar en lenguaje algebraico y resolver los problemas !
1>
[tex]2x + 1 = 9[/tex]
[tex]2x = 9 - 1[/tex]
[tex]2x = 8[/tex]
[tex]x = 8 \div 2[/tex]
[tex]x = 4[/tex]
2>
[tex]x + (x + 1) + (x + 2) = 21[/tex]
[tex]3x + 3 = 21[/tex]
[tex]3x = 21 - 3[/tex]
[tex]3x = 18[/tex]
[tex]x = 18 \div 3[/tex]
[tex]x = 6[/tex]
Remplazamos !
x = 6
x +1 → 6 +1 = 7
x +2 → 6 + 2 = 8
Sumamos cantidades
6 + 7 + 8 = 21
Los números son 6 ; 7 ; 8
Saludos