Four more than six times a number is at least 40. Find the possible range of values.
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Question:
Four more than six times a number is at least 40. Find the possible range of values.
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1. Let x = #2. "Five less than six times a number" can be written as: 6x - 5 3. "is at least" is the same as "greater than or equal to" and can be written as: >= 4. "nine subtracted from two times that number" can be written as: 2x - 95. the equation is: 6x - 5 >= 2x - 96. solve for x by grouping the x variable terms on one side and the constants on the other side: 6x - 5 >= 2x - 9 -2x +5 -2X +5 4x >= -4 7. divide each side by 4, and you get: x = -1
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