CPM Homework Help : CC3MN Problem 6-9

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Home > CC3MN > Chapter 6 > Lesson 6.1.1 > Problem 6-9

6-9.

Which equation below has no solution? Explain how you know.

$4(x+1)=2x+4$
Hint (a):
Solve the equation for $x$ .
$4x+4=2x+4$
$4x=2x$
More Help 1(a):
All you need to know is that equation (a) has at least one solution.
More Help 2(a):
In this case, $x$ could $=0$ .

$9-5x+2=4-5x$
Hint (b):
Follow the steps in equation (a).
Answer (b):
This equation has no solution.

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