Question 173715
5(x-1)=2x+4(x-1).....first of all distributive property for multiplicaton states
:
a(b+c)=ab+ac.......you have to distribute 2 terms in this 
:
5x-5=2x+4x-4
:
5x-5=6x-4....now subtract 5x and add 4 to both sides of the equation
:
{{{cross(-5x)+cross(5x)-5=x+ cross(6x)+cross(-5x)-4}}}
:
{{{-5=x-4}}}now add 4 to both sides
:
{{{highlight(x=-1)}}} 
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-(3-2n)+7n=3(N+3)
:
-3+2n+7n=3n+9
:
-3+9n=3n+9
:
6n=12
:
{{{highlight(n=2)}}}