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3 years ago

2X+4=20+5XA)1/2 B)-1/2 C)2 D)-2

Mathematics

1 answer:

Nookie1986 [14]3 years ago

7 0

Answer:

It seems that your options aren't correct as the right answer is -5.3333... (recurring)

Step-by-step explanation:

1) 2x + 4 = 20 + 5x (subtract by the smallest unknown)

-2x -2x

2) 4 = 20 + 3x

-20 -20 (now subtract each side by 20 as we want to leave the unknown on one side and another number on the other side.

3) -16 = 3x (Divide each side by 3)

÷3 = ÷3

4) -5.33333... = x

<h3>Now we have found x but if you're unsure you can substitute to see if your answer is correct.</h3><h3>2 x -5.3333 + 4 = -6.6666</h3><h3>20 + 5 x -5.3333= -6.6665</h3><h3>Our answer is correct! (When answers are rounded, it is equal to the same thing).</h3>

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2X+4=20+5XA)1/2 B)-1/2 C)2 D)-2​

2X+4=20+5XA)1/2 B)-1/2 C)2 D)-2