Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Appendix - Extra Word Problems: 4

Answer

$\frac{6}{5}$

Work Step by Step

We take the unknown number as $x$. Five times the unknown number is $5x$. $2$ subtracted from five times a certain number means $5x-2$. Since when 2 is subtracted from five times a certain number, the result is 4, we write the equation $5x-2=4$. Next, we solve this equation: $5x-2=4$ $5x=4+2$ $5x=6$ $x=\frac{6}{5}$ Therefore, the unknown number is $\frac{6}{5}$.
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