For this case we have the following expression: [tex]ax - by = f
[/tex] We must clear the value of x in the expression. For this, we must follow the following steps: 1) add by on both sides of the equation: [tex]ax - by + by = f + by
ax = f + by[/tex] 2) multiply both sides by 1 / a: [tex](1 / a) * ax = (1 / a) f + (1 / a) by
x = (1 / a) f + (1 / a) by[/tex] 3) Common factor 1 / a: [tex]x = (1 / a) * (f + by)[/tex] Answer: [tex]x = (1 / a) * (f + by)[/tex]
