What is the answer to 4(1-3x)+7x=9 ?

The answer to 4(1-3x)+7x=9 is x=-1

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4(1-3x)+7x=9

4 (1 - 3 x) + 7 x = 9

x = - 1

Solution steps

4 (1 - 3 x) + 7 x = 9

Expand

4 (1 - 3 x) : 4 - 12 x

4 - 12 x + 7 x = 9

Add similar elements:

- 12 x + 7 x = - 5 x

4 - 5 x = 9

Move

4

to the right side

- 5 x = 5

Divide both sides by

- 5

x = - 1

(x - 5)^{2} = - 5

2 π r = 20

- \frac{13}{30} + \frac{25}{42}

x^{4} + 2 x^{2} + 1

(\frac{5}{4})^{- 1}