CPM Homework Help : CC3MN Problem 7-107

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Home > CC3MN > Chapter 7 > Lesson 7.3.2 > Problem 7-107

7-107.

Simplify and solve the following equations.

$\frac { 1 } { 4 } x + \frac { 1 } { 10 } = - \frac { 3 } { 20 } x - \frac { 7 } { 10 }$
Hint (a):
Find a common denominator to get rid of the fractions.
Use $20$ .
$5x+2=−3x−14$
More Help (a):
Combine like terms and solve for $x$ .
Answer (a):
$x=−2$

$3x+4.5=4.5x−18$
Hint (b):
Combine like terms and solve for $x$ .

$\frac { 1 } { 12 } x - \frac { 1 } { 12 } = \frac { 1 } { 8 } x + \frac { 1 } { 6 } - \frac { 1 } { 6 } x$
Hint (c):
Refer to (a).

$6.25x+7.5−2.5x=3.75x−8.75$
Hint (d):
Refer to (b).

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