Solve the equation. 3(x−9)=30

Question

Solve the equation.

3(x−9)=30

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niczorrrr 4 years 2021-07-15T15:31:42+00:00 2 Answers 15 views 0

Answers ( )

  1. RuslanHeatt
    0
    2021-07-15T15:32:59+00:00
    Reply

    Answer:

    x = 19

    Step-by-step explanation:

    3(x – 9) = 30

    Divide both sides by 3 to isolate the binomial.

    x – 9 = 10

    Add 9 to both sides to isolate x.

    x = 19

    Check your answer by plugging x = 19 back into the equation.

    3(x – 9) = 30

    3(19 – 9) = 30

    Subtract.

    3(10) = 30

    Multiply.

    30 = 30

    Your answer is correct.

    Hope this helps!

  2. danthu
    0
    2021-07-15T15:33:37+00:00
    Reply

    Answer:

    x = 19

    Step-by-step explanation:

    First, we must distribute 3(x-9) = 30

    3x - 27 = 30

    Now, that we’ve distributed this equation, we can proceed.

    Secondly, since there is a subtraction sign in front of 27, we must do the opposite, addition.

    Add 27 to 27 and 30:

    3x - 27 = 30

    -27 + 27 = 0

    30 + 27 = 57

    Furthermore, -27 + 27 is 0, so it cancels itself out. Also, since we added 30 and 27 and got 57, replace 30 with 57.

    3x = 57

    Lastly, divide 57 by the number in front of coefficient, 3.

    57/3=19

    Therefore, x=19.

    **TO MAKE THIS MORE UNDERSTANDING, THIS IS HOW YOUR EQUATION SHOULD LOOK WHILE SOLVING**

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