Question

10*y+2(7*y-2)=5*(4*y+3)+3*y

Answer 1

10*y+2*(7*y-2)=5*(4*y+3)+3*y;
10*y+2*7*y-2*2=5*4*y+5*3+3*y;
(10+14)*y-4=(20+3)*y+15;
24*y-4=23*y+15;
23*y+15+4=24*y;
(24-23)*y=15+4;
y=19.