One side of an equilateral triangle increased by 9 is 31 less than 3 times another side. If the sides are measured in inches, what are the measures of the three sides of the triangle?
Stacey Warren - Expert brainly.com
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You do know they all start out the same size, right?
But then what about all the adding and multiplying?
ALWAYS start by naming things.
E = The length of all three sides of the equilateral triangle.
"One side of an equilateral triangle increased by 9"
That's E + 9
"is 31 less than 3 times another side."
Okay, so E + 9 = 3E - 31
Anything left to translate or can we proceed with the solution?
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Why -31? If it's 31 less than 3 times shouldn't it be +31?
3 times is 3E
31 less than 3 times is 3E - 31
You may be trying to put the 31 on the wrong side of the equation. I do not recommend this. I recommend translating EXACTLY what the problem statement says. That's why I called it the "WRONG SIDE" and not just "the other side if that's how you feel like doing it".