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The equation below has one solution. 9x-10=3x+2 What is the solution to the equation?

A. - 2

B. - 1

C. 1

D. 2

+1
Answers (2)
  1. 2 May, 22:25
    0
    Steps:

    9x-10 = 3x+2

    9x-3x-10 = 3x-3x+2 Move positive 3 to the other side. Sign changes from positive to negative number.

    6x-10=2

    Move negative - 10 to other side. Sign changes from negative to positive.

    6x-10+10 = 2+10

    6x = 12

    Divide by 6 for 6x and 12

    6x/6 = 12/6

    x = 2

    Check answer by using substitution method

    9x-10 = 3x+2

    9 (2) - 10 = 3 (2) + 2

    18-10 = 6+2

    8 = 8

    Answer : x = 2 - D.
  2. 2 May, 22:33
    0
    D: 2

    Step-by-step explanation:

    To solve, first move all of the variables to the left side of the equation.

    9x-10=3x+2, Subtract 3x from both sides of the equation.

    6x-10=2, Next, add 10 to both sides to isolate x.

    6x=12, Now, divide both sides by 6 to solve for x.

    x=2, The solution to the equation is 2 The answer is D.
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