Let's solve for x.5x+y−7=0Step 1: Add 7 to both sides.5x+y−7+7=0+75x+y=7Step 2: Add -y to both sides.5x+y+−y=7+−y5x=−y+7Step 3: Divide both sides by 5.5x5=−y+75x=−15y+75Let's solve for x.6x+y=4Step 1: Add -y to both sides.6x+y+−y=4+−y6x=−y+4Step 2: Divide both sides by 6.6x6=−y+46x=−16y+23Answer:x=−16y+23