Question 969894

{{{5x-2(x-5)=7x-2}}}.....first multiply

{{{5x-2*x-2*(-5)=7x-2}}}

{{{5x-2x+10=7x-2}}}

{{{3x+10=7x-2}}}....move unknown variable to the right side 

{{{2+10=7x-3x}}}

{{{12=4x}}}

{{{12/4=x}}}

{{{3=x}}}