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Sam's height is 15 centimeters less than 2 times Martha's height. If Sam is 185 centimeters tall, and Martha's height is x, the relationship between the heights can be represented by the equation 2x −
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Sam's height is 15 centimeters less than 2 times Martha's height. If Sam is 185 centimeters tall, and Martha's height is x, the relationship between the heights can be represented by the equation 2x − 15 = 185. What is Martha's height?

User Ben Bagley
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1 Answer

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Move fifteen to the other side as a positive number
2x= 200
Divide both sides by two
So x is 100 cm. therefore Martha's height is 100cm
User Kmeixner
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