Justify each step for 2x-5=-20

Question

Efrain Rivers

Mathematics

14 March, 23:38

Justify each step for 2x-5=-20

+4

Answers (1)

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Melvin Pitts · Answer 1

2x-5=-20

You'd add 5 to both sides because when you add 5 to - 5, they cancel out, therefore making it the right step.

2x = - 15

Divide both sides by 2 because your goal is to try to get x by itself. The opposite of multiplying 2 and x is dividing x by 2.

Final Answer: x = - 7.5