Posted by **Richard** on Tuesday, August 21, 2012 at 2:15pm.

Do the equations x = 5y + 3 and x = 5y – 3 have the same solution? How might you explain your answer to someone who has not learned algebra? 200 words or better

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**Henry**, Thursday, August 23, 2012 at 7:50pm
Eq1: X = 5y + 3.

Eq2: X = 5y - 3.

Substitute 2 for Y in each Eq and solve

for X:

Eq1: X = 5*2 + 3 = 10 + 3 = 13.

Eq2: X = 5*2 - 3 = 10 - 3 = 7.

The value of the 1st term in each Eq is 10. In Eq1, we add 3 to 10. But in Eq2,

we subtract 3 from 10. Therefore, the

solutions cannot be the same.

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