2 Answers

Singletoned · Answer 1 · 2021-02-02T15:34:26+0000

Required Answer:

As per the provided question, we have to find the value of x. So, we can easily find the value of x by transposition method.

$\sf \red { 1.5x + 1.3x = -8.4 }$

$\sf {\implies 2.8x = -8.4 }$

$\sf {\implies x =( -8.4 )/(2.8)}$

$\sf {\implies x =\frac{ -84 * \cancel{10} }{28 * \cancel{10}}}$

$\sf {\implies x =( -84 )/(28)}$

$\sf {\implies x = -3}$
$\purple {\bigstar}$

Just substitute the value of x in L.H.S .

$\sf \red { 1.5x + 1.3x = -8.4 }$

Therefore

$\sf {\implies 1.5(-3) + 1.3(-3)= -8.4 }$

$\sf {\implies -4.5+ (-3.9)= -8.4 }$

$\sf {\implies -4.5-3.9= -8.4 }$

$\sf \purple {\implies -8.4= -8.4 }$

$\sf {\therefore L.H.S= R.H.S }$