How do you solve $2 x + 21 = 4 x + 5$ $2x + 21= 4x + 5$ ?

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How do you solve $2 x + 21 = 4 x + 5$ $2x + 21= 4x + 5$ ?

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Answer 1 · 2018-05-26T16:12:30

$8$ $8$

Explanation:

$2 x + 21 = 4 x + 5$ $2x+21=4x+5$
is given:
substracting
$2 x$ $2x$ :
$21 = 2 x + 5$ $21=2x+5$
subtracting $5$ $5$
$16 = 2 x$ $16=2x$
dividing by $2$ $2$
getting
$x = 8$ $x=8$

Answer 2 · 2018-05-26T16:12:37

$x = 8$ $x = 8$

Explanation:

As per the question, we have

$2 x + 21 = 4 x + 5$ $2x + 21 = 4x + 5$

$:. cancel(2x) cancel(- 2x) + 21 - 5 = 4x - 2x + cancel5 cancel- 5$ ... [Subtracting $2x$ and $5$ from both sides]

$:. 16 = 2x$

$:. x = 16/2$

$:. x = 8$

Hence, the answer.

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How do you solve $2 x + 21 = 4 x + 5$ $2x + 21= 4x + 5$ ?

2 Answers

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