Question

Consider the equations shown: ax + by = ab & 2ax + 3by = 3b

Answer 1

Answer: $y=3-2a$, Option 4

Step-by-step explanation:

$\left \{ {ax + by = ab} \atop {2ax + 3by = 3b}} \right.$

multiply 2 at $ax+by=ab$

$2ax+2by=2ab$

subtract $2ax + 3by = 3b$ and$2ax+2by=2ab$

$by=3b-2ab$

$y=3-2a$