7=a-5Rewrite the equation as a-5=7.a-5=7Move all terms not containing a to the right side of the equation.Tap for more steps…Add 5 to both sides of the equation.a=7+5Add 7 and 5.a=12a=12 Solve for a 7=a-5 Solving MATH problems We can solve all math problems. Get help on the web or with our math app