Question

Value of x in 5(4x +3) = 3(x-2) which will be the answer *
a) -21/7
O b)-21/17
O c) 17/21
O d) 21/17​

Answer 1

5(4x + 3) = 3(x - 2)

20x + 15 = 3x - 6

17x = -21

x = -21/17

Option B

Answer 2

$\huge\rm\orange{an{\mathcal{S}}wer:}$

${ }$

$\bf{{\underline{To~solve}}:}$

$\tt 5(4x + 3) = 3(x - 2) \\ \tt \longmapsto 20x + 15 = 3x - 6 \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \tt \longmapsto 20x - 3x = - 6 - 15 \: \: \: \: \: \: \: \: \: \\ \tt \longmapsto 17x = - 21 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \tt \longmapsto x = \orange{ \underline{ \boxed{ \bf \: \frac{ - 21}{17} \: }}} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

$\bf\therefore{{\underline{Required~answer}}:}$

$\: \: \: \: \: \: \: \: \: \: \tt x = \orange{ \underline{ \boxed{ \bf \: \frac{ - 21}{17} \: }}}$