A triangle has sides with lengths of 5x - 2, 4x - 4, 6x - 8. What is the perimeter of the triangle?
1 answer:
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Try this solution with short explanation; note, the suggested way is not the shortest one; the answers are marked with red colour.
Task no. 2: another solution is 45* (4/5) / (6/4) = 24 min.
