Solve the inequalities. Give your answer in interval notation, and indicate the answer geometrically on the real-number line.
a) t + 6 ≤ 2 + 3t
b) 3(2 – 3x) > 4(1 – 4x)
a)
(we have got all the terms with the variable t on the left and the numbers on the right)
(we have simplified the both sides)
(We have divided by the negative number, so we had to change the direction of the inequality)
in interval notation:
the interpretation on the real-number line:
b)
(we have removed parentheses)
(we have got all the terms with the variable x on the left and the numbers on the right)
(we have simplified the both sides)
(We have divided by the positive number, so we hadn't to change the direction of the inequality)
in interval notation:
the interpretation on the real-number line:
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