### Home > GC > Chapter 1 > Lesson 1.1.5 > Problem1-45

1-45.

For each equation below, solve for the given variable. If necessary, refer to the Math Notes box in Lesson 1.1.4 for guidance. Show the steps leading to your solution and check your answer.

1. $75 = 14y + 5$

$75 = 14y + 5$
$70 = 14y$
$y = 5$

1. $−7r + 13 = −71$

$−7r + 13 = −71$
$−7r = −84$
$r = 12$

1.  $3a+11=7a−13$

• Refer to the process used for parts (a) and (b).

1. $2m + m − 8 = 7$