What is the value of x? 3/4x + 5 − 1/2x = 3 A. −8 B. −1/2 C. 1/2 D. 8

Question

What is the value of x? 3/4x + 5 − 1/2x = 3
A. −8
B. −1/2
C. 1/2
D. 8

0

Answers ( No )

  1. Emma
    0
    2021-11-25T19:36:20+00:00

    \dfrac{3}{4}x+5-\dfrac{1}{2}x=3\qquad|\text{multiply both sides by 4}\\\\\not4^1\cdot\dfrac{3}{\not4_1}x+4\cdot5-\not4^2\cdot\dfrac{1}{\not2_1}x=4\cdot3\\\\3x+20-2x=12\\\\(3x-2x)+20=12\qquad|\text{subtract 20 from both sides}\\\\x=-8

    Answer: A. -8

    0
    2021-11-25T19:37:13+00:00

    A= -8 is the answer because you subtract five from both sides the subtract 3/4 and 1/2 to get 1/4. The divide -2 by 1/4 to get the answer x= -8

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