- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Give first the step you will use to separate the variable and then solve the equation:
$(a).\ 3l=42$
$(b).\ \frac{b}{2}=6$
$(c).\ \frac{p}{7}=4$
$(d).\ 4x=25$
$(e).\ 8y=36$
$(f).\ \frac{z}{3}=\frac{5}{4}$
$(g).\ \frac{a}{5}=\frac{7}{15}$
$(h).\ 20t=-10$
To do:
We have to give first the step we will use to separate the variable and then solve the equation.
Solution:
(a) $3l=42$
Divide both the sides by 3 we get,
$\frac{3l}{3}=\frac{42}{3}$
$l=14$
(b) $\frac{b}{2}=6$
Multiplying both sides by 2 we get,
$(\frac{b}{2})\times 2=6\times 2$
$b=12$
(c) $\frac{p}{7}=4$
Multiplying both sides by 7 we get,
$(\frac{p}{7})\times 7=4\times 7$
$p=28$
(d) $4x=25$
Dividing both the sides by 4 we get,
$\frac{4x}{4}=\frac{25}{4}$
$x=\frac{25}{4}$
(e) $8y=36$
Dividing both the sides by 8 we get,
$\frac{8y}{8}=\frac{36}{8}$
$y=\frac{9}{2}$
(f) $\frac{z}{3}=\frac{5}{4}$
Multiplying both sides by 3 we get,
$(\frac{z}{3})\times 3=(\frac{5}{4})\times 3$
$z=\frac{15}{4}$
(g) $\frac{a}{5}=\frac{7}{15}$
Multiplying both sides by 5 we get,
$(\frac{a}{5})\times 5=(\frac{7}{15})\times 5$
$a=\frac{7}{3}$
(h) $20t=-10$
Dividing both sides by 20 we get,
$\frac{20t}{20}=\frac{-10}{20}$
$t=\frac{-1}{2}$
To Continue Learning Please Login
Login with Google