The given equation is expressed as
7y + 3x = 9
To solve for x, the first step is to subtract 7y from both sides of the equation. It becomes
7y - 7y + 3x = 9 - 7y
3x = 9 - 7y
We would divide both sides of the equation by 3. it becomes
3x /3 = 9/3 - 7y/3
x = 3 - 7y/3
To solve for y, the first step is to subtract 3x from both sides of the equation. It becomes
7y + 3x - 3x = 9 - 3x
7y = 9 - 3x
We would divide both sides of the equation by 7. it becomes
7y/7 = 9/7 - 3x/7
y = 9/7 - 3x/7