Question

which of these would be a helpful first step in solving the equation? check all that apply. 7x - 9 = 2x + 21

Answer 1

Subtract 2x because you need to get the x value on one side and number on the other

Answer 2

Answer: E. Subtract 2x

Explanation:

Subtracting 2x would remove a bit from both equations, giving us 5x - 9 = 12. This would make it easier now that we only have one number on a side.

Hope this helps!