Respuesta:
resuelva las ecuaciones y comprobarlas !
A)
[tex]17 + 4m = 25[/tex]
[tex]4m = 25 - 17[/tex]
[tex]4m = 8[/tex]
[tex] \frac{4m}{4} = \frac{8}{4} [/tex]
[tex]m = 2[/tex]
Comprobamos !
[tex]17 + 4(2) = 25[/tex]
[tex]17 + 8 = 25[/tex]
[tex]25 = 25[/tex]
B)
[tex]42 - 9x = 141[/tex]
[tex] - 9x = 141 - 42[/tex]
[tex] - 9x = 99[/tex]
[tex]x = - \frac{9 9}{9} [/tex]
[tex]x = - 11[/tex]
[tex]42 - 9( - 11) = 141[/tex]
[tex]42 + 99 = 141[/tex]
[tex]141 = 141[/tex]
G)
[tex] \frac{2x}{8} - 16 = 24[/tex]
[tex] \frac{2x}{8} = 24 + 16[/tex]
[tex] \frac{2x}{8} = 40[/tex]
[tex]2x = 40 \times 8[/tex]
[tex]2x = 320[/tex]
[tex]x = 320 \div 2[/tex]
[tex]x = 160[/tex]
[tex] \frac{2(160)}{8} - 16 = 24[/tex]
[tex] \frac{320}{8} - 16 = 24[/tex]
[tex]40 - 16 = 24[/tex]
[tex]24 = 24[/tex]
Dato ° Las demás hazlo tu , guiate de las resoluciones .
Saludos y bendiciones
a) 2
b) 11
c) 5
d) 4
e) 1
f) 12/
g) 160
Explicación paso a paso:
a) 17+4m=25
4m=25-17
4m=8
m=8/4
m=2
b) 42-9x=141
-9x=141-42
-9x=99
x=99/9
x=11
c) 8x+16=56
8x=56-16
8x=40
x=40/8
x=5
d) 7m-12=16
7m=16+12
7m=28
m=28/7
m=4
e)18+5r=23
5r=23-18
5r=5
r=5/5
r=1
f) 2a/3+21=41
2a/3=41-21
2a/3=20
2a=20x3
2a=60
a=60x2
a=120
g) 2x/8-16=24
2x/8=24+16
2x/8=40
2x=40x8
2x=320
x=320/2
x=160
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Verified answer
Respuesta:
hola buenas //
resuelva las ecuaciones y comprobarlas !
A)
[tex]17 + 4m = 25[/tex]
[tex]4m = 25 - 17[/tex]
[tex]4m = 8[/tex]
[tex] \frac{4m}{4} = \frac{8}{4} [/tex]
[tex]m = 2[/tex]
Comprobamos !
[tex]17 + 4(2) = 25[/tex]
[tex]17 + 8 = 25[/tex]
[tex]25 = 25[/tex]
B)
[tex]42 - 9x = 141[/tex]
[tex] - 9x = 141 - 42[/tex]
[tex] - 9x = 99[/tex]
[tex]x = - \frac{9 9}{9} [/tex]
[tex]x = - 11[/tex]
Comprobamos !
[tex]42 - 9( - 11) = 141[/tex]
[tex]42 + 99 = 141[/tex]
[tex]141 = 141[/tex]
G)
[tex] \frac{2x}{8} - 16 = 24[/tex]
[tex] \frac{2x}{8} = 24 + 16[/tex]
[tex] \frac{2x}{8} = 40[/tex]
[tex]2x = 40 \times 8[/tex]
[tex]2x = 320[/tex]
[tex]x = 320 \div 2[/tex]
[tex]x = 160[/tex]
Comprobamos !
[tex] \frac{2(160)}{8} - 16 = 24[/tex]
[tex] \frac{320}{8} - 16 = 24[/tex]
[tex]40 - 16 = 24[/tex]
[tex]24 = 24[/tex]
Dato ° Las demás hazlo tu , guiate de las resoluciones .
Saludos y bendiciones
Respuesta:
a) 2
b) 11
c) 5
d) 4
e) 1
f) 12/
g) 160
Explicación paso a paso:
a) 17+4m=25
4m=25-17
4m=8
m=8/4
m=2
b) 42-9x=141
-9x=141-42
-9x=99
x=99/9
x=11
c) 8x+16=56
8x=56-16
8x=40
x=40/8
x=5
d) 7m-12=16
7m=16+12
7m=28
m=28/7
m=4
e)18+5r=23
5r=23-18
5r=5
r=5/5
r=1
f) 2a/3+21=41
2a/3=41-21
2a/3=20
2a=20x3
2a=60
a=60x2
a=120
g) 2x/8-16=24
2x/8=24+16
2x/8=40
2x=40x8
2x=320
x=320/2
x=160