Shawnece is solving the equation x7 − 4 = −6 . One of her steps is to multiply both sides of the equation by 7. Why? (1 point) Responses A.The negative sign in −6 must be changed to positive. B. Multiplying both sides by 7 undoes the division of xx by 7 in the original problem. C.Multiplying both sides by 7 undoes the subtraction in the original problem. D.Multiplying both sides by 7 undoes the addition in the original problem.
1 answer
The correct answer is C. Multiplying both sides by 7 undoes the subtraction in the original problem. By multiplying both sides of the equation by 7, you are eliminating the subtraction of 4 on the left side, leaving only x7 behind. This helps in isolating the variable x.