Question

solve (a)3(x+7)-4=7x-1​

Answer 1

Answer:

Hey mate !

Here's your answer

$x = - 9 \div 2$

Kindly refer to the Attachment

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Answer 2

$3(x + 7) - 4 = 7x - 1 \\ \: 3x + 21 - 4 = 7x - 1 \\ \: \: \: 21 - 4 + 1 = 7x - 3x \\ \: \: \: \: \: \: \: \: \: \: \: 22 - 4 = 4x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = \frac{18}{4} \: \: \: = \frak{ \red{4.5}}$