Answer
The solution is 5
Work Step by Step
3r+4=19 Subtract 4 from both sides
3r+4 -4=19 -4 Simplify
3r =15 Divide by 3 on both sides
$\frac{3r}{3}$ =$\frac{15}{3}$
r=5
The solution is 5
Check
3r+4=19
3$\times$5 +4=19
15+4=19
19=19
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 3 - Section 3.3 - Solving Linear Equations in One Variable - Exercise Set - Page 189: 33
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