Question

1. solve for b. a = x - by

Explanation:

Step1: Isolate the term with b

Add by to both sides of the equation: $a + by=x$.

Step2: Isolate b

Subtract a from both sides: $by=x - a$. Then divide both sides by y (assuming $y
eq0$): $b=\frac{x - a}{y}$.

Answer:

$b=\frac{x - a}{y}$