Shawn is solving the equation x7−47=−6 One of his steps is to multiply both sides of the equation by 7. Why? (1 point) Responses Multiplying both sides by 7 undoes the addition in the original problem. Multiplying both sides by 7 undoes the addition in the original problem. Multiplying both sides by 7 undoes the subtraction in the original problem. Multiplying both sides by 7 undoes the subtraction in the original problem. Multiplying both sides by 7 undoes the division of x by 7 in the original problem. Multiplying both sides by 7 undoes the division of x by 7 in the original problem. The negative sign in -6 must be changed to positive.