true

Take Class 8 Tuition from the Best Tutors

Affordable fees
1-1 or Group class
Flexible Timings
Verified Tutors

Search in

Solving Simultaneous Equations Fastest Way

Debraj Paul

21/03/2017 0 0

Q) 2x + 3y = 13; 4x + 5y = 23?

Ans: Now take LHS of both the equations and cross multiply and subtract. We get 3*4-5*2 = 2. Let it be 'a'.

Now to find x neglect the x terms and cross multiply the other terms,find the difference and divide the whole term by 'a'.

i.e, x=(3*23-5*13)/a = (69-65)/2 =4/2 =2; y=(13*4-23*2)/a = (52-46)/2 =6/2 =3.

0 Like 0 Dislike

Follow 0

Other Lessons for You

Reflection Of Light (Questions)

1. Question: Define reflection of light. Answer: The phenomenon by which a ray of light changes the direction of propagation when it strikes a boundary between different media through which it cannot...

Soumi R.

1 0

Some Important Points of Triangles

1. Orthocentre: Point of intersection of the three altitude of the triangle is called the orthocentre of the triangle. 2. Centroid: Point of intersection of the three median of the triangle is called...

Rahul G.

0 0

In Maths Easy step to become expert

Maths is nothing but the subject of Numbers which include +, -, *, /, and some formulaes associated to various aspects.But what ever we do we basically use numbers. So for learning from basics dont try...

Dhanunjay

0 0

Basic Points

Rahul G.

0 0

Vedic Mathematics for finding square of a number whose unit place carries 5

As we learned from my previous lesson i,e; (In case of two 2-digited numbers whose digits in 10's place are same and sum of the digits in unit places is 10 For example:- 38 and 32 (10's place digits...

Naimish K.

0 0

Find Class VIII near you

Online Tuition Class 8

Looking for Class 8 Tuition ?

Learn from Best Tutors on UrbanPro.

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you

Class 8 Tuition Questions

"प्रसृते विजने प्रदेशे " what is the meaning of this line ?

16 Answers

How much will be the charge for 7th Grade French ?

56 Answers

How much can be charged for class 8 icse maths tutions per month if it is online ?

193 Answers

"प्रमाणाभावात्" what is the meaning of this line ?

12 Answers

Who destroyed the temple of Somnath?

90 Answers

Looking for Class 8 Tuition Classes?

The best tutors for Class 8 Tuition Classes are on UrbanPro

Select the best Tutor
Book & Attend a Free Demo
Pay and start Learning

Take Class 8 Tuition with the Best Tutors

The best Tutors for Class 8 Tuition Classes are on UrbanPro

I am a Student I am a Tutor
Name*	Please enter your full name. Please enter institute name.
Email*	Please enter your email address.
Phone*	Please enter a valid phone number.
Location*	Please enter a pincode or area name.
City*	Please enter city name.
Category*	Please enter category.
Gender*	Male Female Please select your gender.
Email ID/ Mobile No.*	Please enter either mobile no. or email.
Enter Password*	Please enter OTP Please enter Password Sorry, this phone number is not verified, Please login with your email Id.