Question

if 5(3x+4)=4-5x then find the value of the x

Answer 1

Step-by-step explanation:

-4/5 is the answer thanks

Answer 2

Answer:

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If 5 (3x + 4) = 4 - 5x, then find the value of the x.

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$\large \frak{ \underline{ \pink{Solⁿ :}}}$

$= > 5(3x+4)=4-5x$

$= > 15x + 20 = 4 - 5x$

$= > 15x + 5x = 4 - 20$

$= > 20x = - 16$

$= > x = \frac{ \cancel{ - 16}}{ \cancel{20} } = \frac{ - 4}{5}$

$\frac{ - 4}{5} \:is\: the\: correct \: answer$

$\large \frak{ \underline{ \purple{Verifying \: the \: answer :}}}$

$x = \frac{ - 4}{5}$

$3x = 3 \times \frac{ - 4}{5} = \frac{ - 12}{5}$

$5x = 5 \times \frac{ - 4}{5} = - 4$

Now,

L.H.S

$= > 5( \frac{ - 12}{5} + 4) = 5( \frac{ - 12 + 20}{5} )$

$= > { \cancel{ 5}} \times \frac{8}{ \cancel{{5} }} = 8$

R.H.S

$= > 4 - ( - 4) = 4 + 4$

$= 8$

L.H.S = R.H.S

$\large \sf{ \fcolorbox{magenta}{white}{ \color{blue}{Hence verified}}}$

$\large \frak{ \pink{Hope \: it \: helps...}}$

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