Question

Correct the error a student made when solving the equation 4=-2(x-3). What is the correct solution?​

Answer 1

Answer:

It should be positive 6

Step-by-step explanation:

The student multiplied a negative and a negative forgetting that it would become a positive. So in this case x would equal 1

Answer 2

x = 1

4 = -2(x - 3)

open the bracket of the right side by multiplying

4 = -2x + 6 (This was where the student made a mistake)

The product of  - 2 and -3 is suppose to be + 6

So,

4 = -2x + 6

subtract 6 from both sides

4 - 6 = -2x + 6 - 6

-2 = -2x

divide both sides by -2

x = -2 / -2

x = 1

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