Question

4(5) - k(4) =10 linear equations in two variable
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Answer 1

Answer:

4(5) - k(4)=10

20 - 4k =10

20 -10 -4k =0

20 -10 = 4k

10 =4k

10/4 =k

k = 10/4

or

k =2.5

Step-by-step explanation:

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Answer 2

$\large\underline{\sf{SOLUTION~-}}$

${\sf\bold{4~×~5~-~4~k~=~10}}$

${\sf\bold{20~-~4k~=~10}}$

${\sf\bold{-4k~=~-10}}$

${\sf\bold{k~=~ \frac{10}{4} }}$

${\sf\bold{k~=~ \frac{5}{2} }}$

$\pink{\sf\bold{k~=~2.5}}$