Question

4) Solve the equation below. You can type out your steps, record your steps or upload a picture of your steps. Make sure to show/explain every step as well as your final answer.

4(x - 5) - 2 = 56

Answer 1

Answer: 4x-20=58

+20 +20

4x=78

/4 /4

x=19.5

Step-by-step explanation: Parenthesis first. Multiply 4 times x (which is 4x) and 5 times 4 (which is 20). So you get 4x-20-2=56. Move the (-2) over to the other side using inverse operations, making it 4x-20=58. Then move over the 20, again using inverse operations, making it 4x=78. Then isolate the variable by dividing both sides by 4 leaving you with x=19.5. You can check the work by plugging it in:

4(19.5-20)-2=56

78 - 20 = 58 (moved the -2 over to the other side)

58 = 58. That is true so the answer is correct.