CPM Homework Help : GB8I Problem 2-19

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Home > GB8I > Chapter 2 Unit 2 > Lesson INT1: 2.1.2 > Problem 2-19

2-19.

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 (a):
All you need to know is that equation (a) has at least one solution.

$9-5x+2=4-5x$
Hint (b):
Again, solve the equation for $x$ .
Answer (b):
Equation (b) has no solution.

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