Provide an appropriate response.After working correctly through several steps of the solution of a linear equation, a student obtains the equation 4x = 3x. Then the student divides each side by x to get 4 = 3 and gives ? as the answer. Is this correct? If not, explain why.

What will be an ideal response?


Answers will vary. This is not correct to divide by a variable. If -3x is added to both sides, the equation becomes -x = 0, so x = 0 and {0} is the correct solution set.

Mathematics

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A. -1
B. 1
C.
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Solve the problem.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.

A. 40 mph B. 50 mph C. 80 mph D. 20 mph

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Solve the equation.2x = 14

A. 12 B. 7 C. 28 D. 16

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Find the product.(8x - 11y)2

A. 64x2 + 121y2 B. 8x2 + 121y2 C. 8x2 - 176xy + 121y2 D. 64x2 - 176xy + 121y2

Mathematics