Question

solve and expain in copy​

Answer 1

Step-by-step explanation:

hope this helps.............,

Answer 2

${ \bf{ \huge{ \underline{solution}}}}$

${ \rm{ \large \bold{(i) \: 2x - 3(4x + 1) = 7}}}$

${ \rm{ \large { \implies2x - 12x - 3= 7}}}$

${ \rm{ \large { \implies2x - 12x = 7 + 3}}}$

${ \rm{ \large { \implies ( - 10x) = 10}}}$

${ \rm{ \large { \implies x = \dfrac{ { \not( - 10)}^{1} }{ \not10} }}}$

${ \rm{ \large { \implies x = ( - 1)}}}$

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${ \rm{ \large \bold{(ii) \: \dfrac{2m}{3} + \dfrac{m}{4} = 10}}}$

${ \rm{ \large{ \implies\dfrac{8m + 3m}{12} = 10}}}$

${ \rm{ \large{ \implies{8m + 3m} = 10 \times 12}}}$

${ \rm{ \large{ \implies{11m} = 120 }}}$

${ \rm{ \large{ \implies{m} = \dfrac{120}{11} }}}$

${ \rm{ \large{ \implies{m} = 10.90 }}}$