Solving system of equations consisting 3 unknown variables by elimination method

[@okemefulachidera5440]

I really love your teachings
Very easy to understand

[@srinivivasameharwade1994]

Very good explanation, crystal clear concept

[@yugrajsingh9330]

Thanks very nice explanation ❤

[@sanniolalekan8638]

Thanks sir😊

[@Muted-fc]

Thanks sir your explanation is complete

[@kdssketching8126]

In Only your video I get question with complete explaineation

[@LucyMwandwe]

Thanks it's clear 🙏

[@SusanAndane]

Thankyou sir

[@estherkeremah7163]

Thank God for dis soving

[@estherkeremah7163]

Thanks sir apart from dis method is it possible to use other method?

[@octobrerouge1997]

❤👌

[@JPTaquari]

X = 2
Y = 3
Z = 1
1) I add the 3 equations, leaving that
a) 7X + 6Y = 32 * (9) = 63X + 54Y = 288
b) -9X + 19Y = 39 * ( 7) = - 63X + 133Y = 273
Adding, we have that: 187 Y = 561
Y = 3
c) 7X + 18 = 32
X = 2
d) 4 + 9 - 5Z = 8
Z = 1
It takes a little work, but it's cool!

[@abdijarso1910]

if you first eliminate x with eqn 1 and eqn 2 is it possible to eliminate another x by eqn 2 and eqn 3

[@travoltavatileni7494]

I have the same problem

[@magnusobumuneme8863]

Thank you sir for this, but I'm still confused. Please sir when do we use addition or substraction in elimination method, in one of ur videos you used addition but here you substraction. Please clarify me on this. God bless you mightily.

[@Michaeladjei001]

You use addition when the variables you want to eliminate have different signs (+ and -) or (- and +) . For same signs (+ and +) or (- and -) you subtract. Hope you get it?

[@sadiqmusagwadabe9752]

Hello sir
Pls how can I reach you

[@tambuwalmathsclass]

On Facebook

[@Maina-ke9vz]

Why is it that,when you eliminate x from the 1st equation,you get wrong values of y an z?🤥

[@MattRichterIbuan]

what is the final answer: