Answer:
x = y−6/r+4
Step-by-step explanation:
Let's solve for x.
y=4x+rx+6
Step 1: Flip the equation.
rx+4x+6=y
Step 2: Add -6 to both sides.
rx+4x+6+−6=y+−6
rx+4x=y−6
Step 3: Factor out variable x.
x(r+4)=y−6
Step 4: Divide both sides by r+4.
x(r+4)/r+4=y−6/r+4