Me with this answera patch of grass near jeff's school is 7 meters longer than it is wide. the area of the patch of grass is 60 square meters. how many meters long is the patch of grass?

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answer: d.) the total number of protons and neutrons is 15

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this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.