solving 8n-3(n-4)
=8n-3n+12 (multiply -3 to n and -4)
=5n+12
we got 14+3n=5n+12
now subtract 5n to both sides
3n-5n=-2n and on the right side cross out 5n from the right side because 5n-5n=0
we got 14+-2n=-12
subtract 14 to both sides ( cross out 14 from the left side and subtract it to -12
we got -2n=-26
divide -2 to both sides
so the answer =13
