SOLUTION: -12 greater than or equal to 1/2z + 1 greater than or equal to 4

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Question 785662: -12 greater than or equal to 1/2z + 1 greater than or equal to 4
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

if you mean
-12+%3E=%281%2F2%29z+%2B+1+%3E=4, then you have
-12-1+%3E=%281%2F2%29z+%2B+1-1+%3E=4-1
-13+%3E=%281%2F2%29z++%3E=3....all terms multiply by 2
-13%2A2+%3E=%281%2F2%29%2A2z++%3E=3%2A2
-26+%3E=%281%2Fcross%282%29%29%2Across%282%29z++%3E=6
-26+%3E=+z++%3E=6