4x+5y=933 5x+5y=995
995-933 = 62
4x + 5y + 62 = 995 = 5x + 5y
4x +5y +62 = 5x - 5y | -5y on both sides
4x + 62 = 5x | - 4x
62 = 5x - 4x
x = 62
4x + 5y = 933 | x = 62
4*62 + 5y = 933
248 + 5y = 933 | -248
5y = 933 - 248
5y = 685 | :5
y = 137
5x + 5y = 995
4x + 5y = 933
Now, subtract, column by column, the second equation fom the first: x = 62
Substituting this back into the first equation: 5(62) + 5y = 995
310 + 5y = 995
5y = 685
