To get the result we have to transform given formula into y=ax+b form. Lets do this 5x+3y=6 /-5x (subtract 5x both sides) 3y=-5x+6 /:3 (divide both sides by 3) y= In form y=ax+b we know that a is slope and b is y intersect. We can read from our transformed equation that slope a=and its the result
You then have to subtract 125 from both sides so we can isolate our variable which will give us 15x = 120 . Divide 15 from both sides : 15x/15 = 120/15 which will give us x = 8.