CPM Homework Help : INT1 Problem A-83

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A-83.

Simplify each of the following equations and solve for the variable. Show all work and check your solution, if possible.

$3x−7+9−2x=x+2$
Step 1 (a):
Combine like terms.
$x+2=x+2$
Step 2 (a):
Subtract $2$ from both sides.

$x+2=x+2$
$\ \ \ −2\ \ \ \ \ \ −2$
$\ \ \ \ \ \ x=x$
Answer (a):
Any number makes this true.

$−2m+8+m+1=0$
Hint (b):
Follow the steps in part (a).

$2=x+6−2x$
Hint (c):
Follow the steps in part (a).
Answer (c):
$x=4$

$0.5p=p+5$
Hint (d):
Move all the variables to one side.
More Help (d):
Follow the steps in part (a).

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