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3 years ago

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

Mathematics

2 answers:

elena-s [515]3 years ago

5 0

Answer: E. Subtract 2x

Step-by-step 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!

ludmilkaskok [199]3 years ago

4 0

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

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