Join our free STEM summer bootcamps taught by experts. Space is limited.Register Here 🏕

Like

Report

AG
Numerade Educator

Like

Report

Problem 2 Medium Difficulty

Solve the system of equations.
$$\begin{aligned}
x+6 y+3 z &=4 \\
2 x+y+2 z &=3 \\
3 x-2 y+z &=0
\end{aligned}$$

Answer

Discussion

You must be signed in to discuss.

Video Transcript

the soil. The set of linear equation. First, staying this equation of one his equation as to in this question ist solving. Wanting to have the 1st 1 to play one into two, which is two takes, plus really by plus six and his equal duty and then two weeks, which is the second equation plus white plus two is equal. Sub strapping equation one with there still may get cancelled. Just 11. Why less foods and is equal? No. Similarly, it wished with multiple first equation into three, which will give us. But he gives 18. Wife is equal, ninth in physical. So on the third equation three x minus two right plus that is equal to zero. So having this with such tracked with first equation with the second the storm will get cancer 20 by Plus, he'd said, is equally good way. Let's take this equation of four and this question that let's meaning zate from this so we can be done by fourth question in. So this will give us 22 by plus eight Said is equal to 10 and here it is 20 by blessed eight said sequel When twins Now it's obstructing this zipped, um, gets canceled. So two story why is equal to minus two? And hence why is equal to minus substituting? Why is equal to minus one question flight when we substitute that my vision and inclusion if I so 20 to minus one plus eight said Sequel. So it's a is equal will less 20 which is 22 and hence it is equal to 20 to buy. It is 11. No substituting this then, in Equation one except the set, in my indication one this excess equal toe four minus six by reason. So that gives us forward plus six plus 33 by four. So that this last 33 that 40 less 33 it is 73 by so X is equal 73 by four. Why is equal to minus one and said is equal to 11.