Question

Slove the value of variable involved. 5(2k-1)-7(3k-2)=9

Answer 1

$\huge\mathbb{\underline{\underline{\red{SOLUTION:-}}}}$

• It is a linear equation of 1 variable.
• The variable involved is k

so,we have to find the value of k

• Then the question is

5(2k-1)-7(3k-2)=2

$\sf\underline{\underline{\red{According\:to\: question:-}}}$

$\sf 5(2k-1)-7(3k-2)=9\\ \\ \sf\leadsto 10k-5-21k+14=9\\ \\ \sf\leadsto 10k-21+14-5=9\\ \\ \sf\leadsto -11k+9=9\\ \\ \sf\leadsto -11k=9-9\\ \\ \sf\leadsto -11k=0\\ \\ \sf\leadsto k=\frac{0}{-11}\\ \\ \sf\implies k=0$

• The value of k is 0

• Then we have to verify our answer to check it's value of correct or not

$\large\sf\underline{\red{Verification}}$

• Put the value of k in equation which is 0

$\sf 5(2k-1)-7(3k-2)=9\\ \\ \sf\longrightarrow 5(0-1)-7(0-2)=9\\ \\ \sf\longrightarrow 5\times(-1)-7(-2)=9\\ \\ \sf\longrightarrow (-5)+14=9\\ \\ \sf\longrightarrow 9=9\\ \\ \sf L.H.S=R.H.S$

$\large\mathfrak{Hence\: verified ! !}$

• So we checked that the our answer is correct

Value of ●k=0

$\boxed{\underline{\red{\sf{The\: value\:of\:k=0}}}}$

#BAL

#Answerwithquality

Answer 2

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✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✭✮

┗─━─━─━─━∞◆∞━─━─━─━─┛

✨$\underline \mathbb{SOLUTION}$

✨It is a linear equation of 1 variable.

✨The variable involved is k

✨so,we have to find the value of k

✨Then the question is

✨5(2k-1)-7(3k-2)=2

ACCORDING TO QUESTION,

✨5(2k−1)−7(3k−2)=9

✨10k−5−21k+14=9

✨10k−21+14−5=9

✨−11k+9=9

✨−11k=9−9

✨−11k=0

✨$k = 0 \div - 11$

✨$= > k = 0$

✨The value of k is 0

✨Then we have to verify our answer to check it's value of correct or not.

VERIFICATION,

✨Put the value of k in equation which is 0.

✨5(2k−1)−7(3k−2)=9

✨5(0−1)−7(0−2)=9

✨5×(−1)−7(−2)=9

✨(−5)+14=9

✨9=9

⏩L.H.S=R.H.S

✨$\underline \mathbb{VERIFIED...}$

✨Thus, we checked answer is correct therefore value of k is zero..

✨ŤHÁŃKŚ✨

#BAL

#Answerwithquality