Respuesta:
1)
x - 10 + 7 = -4
x = -4 +10 -7
x = 6 - 7
x = -1
2)
2y + 13 = 8 -y + 12
2y + y = 8 +12 - 13
3y = 20 - 13
3y = 7
y = 7/3
y = 2,3
3)
4z + 8 + 5z = 7z - 4
4z +5z - 7z = - 4 - 8
2z = -12
z = -12/2
z = -6
4)
5x + 9 = 6x + 4
5x - 6x = + 4 - 9
- x = -5
x = 5
5)
3m + 10 + 2m = 12 + 8m + 7
3m + 2m -8m = 12 +7 -10
-3m = 9
m = 9/-3
m = -3
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Respuesta:
1)
x - 10 + 7 = -4
x = -4 +10 -7
x = 6 - 7
x = -1
2)
2y + 13 = 8 -y + 12
2y + y = 8 +12 - 13
3y = 20 - 13
3y = 7
y = 7/3
y = 2,3
3)
4z + 8 + 5z = 7z - 4
4z +5z - 7z = - 4 - 8
2z = -12
z = -12/2
z = -6
4)
5x + 9 = 6x + 4
5x - 6x = + 4 - 9
- x = -5
x = 5
5)
3m + 10 + 2m = 12 + 8m + 7
3m + 2m -8m = 12 +7 -10
-3m = 9
m = 9/-3
m = -3