Question

Chp-Linear Equations
Q1-Solve

Answer 1

Step-by-step explanation:

7+4x =9x-13

4x-9x=7+13

5x=20

x=20/5

x=4

Answer 2

Correct Question-:

• Solve the linear equation-:

• $\implies {\bigstar {\sf{\large {Equation\:=\:7+4x = 9x -13 }}}}$

AnswEr-:

• $\blue{\underline{\boxed{\implies {\sf{The\:value \:of\: x = 4 }}}}}$

$\implies {\bigstar {\sf{\large {Explanation-: }}}}$

• $\mathrm{Given \:\: -:} \begin{cases} \sf{Equation\:=\: 7 +4x = 9x-13}\end{cases}$

• $\mathrm{To \:Find\: -:} \begin{cases} \sf{Solve\:the\:linear\:Equation. }\end{cases}$

$\dag {\underline {\sf{\large { Solution\:of\:Question\:-: }}}}$

• $\star {\bigstar {\sf{\large { Now , \: Solving\:for\:x\:in\:Equation-: }}}}$

• $\implies {\sf{Equation\:=\: 7 +4x = 9x-13}}$

• $\star {\bigstar {\sf{\large { Now -: }}}}$

• $\implies {\sf{\: 7 +4x = 9x-13}}$

• $\implies {\sf{\: 7 +13+4x = 9x}}$

• $\implies {\sf{\: 7 +13 = 9x-4x}}$

• $\dag {\bigstar {\sf{\large { Or , }}}}$

• $\implies {\sf{\: 9x-4x = 7+13}}$

• $\implies {\sf{\: 5x = 7+13}}$

• $\implies {\sf{\: 5x = 20}}$

• $\implies {\sf{\: x = \dfrac{20}{5}}}$

• $\implies {\sf{\: x = 4 }}$

$\implies {\bigstar {\sf{\large {Hence, }}}}$

• $\blue{\underline{\boxed{\implies {\sf{The\:value \:of\: x = 4 }}}}}$

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• $\implies {\bigstar {\sf{\huge {♡Verification \:-: }}}}$

• $\implies {\bigstar {\sf{\large {Equation\:=\:7+4x = 9x -13 }}}}$

$\implies {\bigstar {\sf{\large {Here, }}}}$

• $\implies {\sf{\: x = 4 }}$

$\implies {\bigstar {\sf{\large {Now,\:Putting \:known\:values \:=}}}}$

• $\implies {\sf{\: 7 +4\times 4 = 9 \times 4 -13}}$

• $\implies {\sf{\: 7 + 16 = 36 -13}}$

• $\implies {\sf{\: 23 = 23}}$

Therefore-:

• $\implies {\bigstar {\sf{\large {LHS\:=\:RHS }}}}$

• $\implies {\bigstar {\sf{\large {Hence, \:\:Verified }}}}$

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