Question

resover las inecuaciones :
a) -x+15<=3-7x
b)x+11>=3-4x
c)-x-13<=3+7x
d)2x+11>=6+5x

Answer 1

1._-x+7x<=3-15
6x<=-12
x<=-12/6
x=-2
2._x+4x>=11-3
5x>=8
x>=8/5
x=1.6
3._-x-13<=3+7x
-x-7x<=-13-3
-8x<=-16
-x<=-16/8
-x=-2
x=2
4._2x+11>=6+5x
2x-5x>=11-6
-3x>=5
-x>=5/-3
-x=-1.7
x=1.7