Solving system of equations consisting 3 unknown variables by elimination method

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  1. Tambuwal Maths Class
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I really love your teachings

Very easy to understand

okemefulachidera
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In Only your video I get question with complete explaineation

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

estherkeremah
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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.

magnusobumuneme
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Thanks sir your explanation is complete

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

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

abdijarso
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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!

JPTaquari