Respuesta:
1)
5x+5 = 2x +20
5x - 2x = 20 - 5
3x = 15
x = 15/3
x = 5
2)
6y-8= 4y +4
6y - 4y = 4 + 8
2y = 12
y = 12/2
y = 6
3)
2(x+2) = x +6
2x + 4 = x + 6
2x - x = 6 - 4
x = 2
4)
4m +6 = 8 +2 m
4m - 2m = 8 - 6
2m = 2
m = 2/2
m = 1
5)
-15y = 45
y = 45/-15
y = -3
6)
3x +(x-8) = x(2-5)
3x + x - 8 = 2x - 5x
3x + x - 2x + 5x = 8
7x = 8
x = 8/7
Explicación paso a paso:
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Respuesta:
1)
5x+5 = 2x +20
5x - 2x = 20 - 5
3x = 15
x = 15/3
x = 5
2)
6y-8= 4y +4
6y - 4y = 4 + 8
2y = 12
y = 12/2
y = 6
3)
2(x+2) = x +6
2x + 4 = x + 6
2x - x = 6 - 4
x = 2
4)
4m +6 = 8 +2 m
4m - 2m = 8 - 6
2m = 2
m = 2/2
m = 1
5)
-15y = 45
y = 45/-15
y = -3
6)
3x +(x-8) = x(2-5)
3x + x - 8 = 2x - 5x
3x + x - 2x + 5x = 8
7x = 8
x = 8/7
Explicación paso a paso: