Maths-
General
Easy

Question

If 3 (3x + 5) = 2x - 8 , what is the value of x ?

  1. negative 23 over 7
  2. negative 15 over 7
  3. negative 13 over 7
  4. 7 over 11

The correct answer is: negative 23 over 7


    3 space left parenthesis 3 straight x space plus space 5 right parenthesis space equals space 2 straight x space minus space 8 space not stretchy rightwards double arrow space 9 straight x space plus space 15 space equals space 2 straight x space minus space 8
    not stretchy rightwards double arrow space 9 straight x space minus space 2 straight x space equals space minus space 15 space minus space 8 space not stretchy rightwards double arrow space 7 straight x space equals space minus 23
    not stretchy rightwards double arrow straight x equals negative fraction numerator begin display style 23 end style over denominator 7 end fraction

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