Question

6.
When x2 - xy + y = 5 and x = 2, then the value of y will be

Answer 1

Step-by-step explanation:

hi it's not clear but the answer is right ok

hope it's helpful

Answer 2

$\large\rm{\red{Sol}\orange{ution} }$

x² - xy + y = 5, where x = 2

$\tt{\hookrightarrow Putting~x~=~2~in~x²~-~xy~+y~=~5}$

$\tt{\hookrightarrow (2)²~-~2y~+~y~=~5}$

$\tt{\hookrightarrow 4~-~y~=~5}$

$\tt{\hookrightarrow -y~=~5~-~4}$

$\rm{\Rightarrow y~=~-1}$

$\large\green{\sf{Verification}}$

$\tt{Putting~ y ~= ~-1 ~& ~x ~= ~2 ~in ~x² ~-xy ~+ ~y ~=~ 5}}$

» $\tt{\sf{(2)²~-~(2~×~-1)~+~(-1)}}$

» $\tt{\sf{4~-~(-2)~-1}}$

» $\tt{\sf{4~+~2~-~1}}$

» $\tt{\sf{6~-~1}}$

» $\tt{\sf{5}}$

» $\tt{\sf{L.H.S~=~R.H.S}}$

» $\tt{\sf{Hence~verified}}$

$\fbox\blue{.°.~Value~of~y~→~-1}$