Question

3 (x + 7) - 4 =7x-1

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Answer 1

$: \implies \: 3(x + 7) - 4 = 7x - 1$

$: \implies \: 3x + 21 - 4 = 7x + 1$

$: \implies \: 21 - 4 + 1 = 4x$

$: \implies18 = 4x$

$: \implies \: x = \frac{18}{4}$

$\therefore { \: \: x = \frac{9}{2}}$

$\therefore \: \: \: \: \fbox{x = 4.5}$

Answer 2

Answer:

The value of x is 4.5

Step-by-step explanation:

3x + 21 - 4 = 7x - 1

3x + 17 = 7x - 1

17 + 1 = 7x - 3x

18 = 4x

x = 4.5

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