7e−4=31 solve for e.
7e-4=31 add 4 to both sides = 7e=35 then divide 7 on both sides then you get the answer of e=5
solve your equation step-by-step.7x−4=31Add 4 to both sides.7x−4+4=31+47x=35Divide both sides by 7.7x/7 = 35/7x=5