What is the answer to 80+x/3+2/7 (x/3)=x ?

The answer to 80+x/3+2/7 (x/3)=x is x=140

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80+x/3+2/7 (x/3)=x

80 + \frac{x}{3} + \frac{2}{7} (\frac{x}{3}) = x

x = 140

Solution steps

80 + \frac{x}{3} + \frac{2}{7} (\frac{x}{3}) = x

Remove parentheses:

(a) = a

80 + \frac{x}{3} + \frac{2}{7} \cdot \frac{x}{3} = x

\frac{2}{7} \cdot \frac{x}{3} = \frac{2 x}{21}

80 + \frac{x}{3} + \frac{2 x}{21} = x

Multiply by LCM

1680 + 9 x = 21 x

Move

1680

to the right side

9 x = 21 x - 1680

Move

21 x

to the left side

- 12 x = - 1680

Divide both sides by

- 12

x = 140

4 (4 x - 3) = 8 (2 x - 2) + 4

5 (x - 2) - 4 (2 x + 1) = - 3 x + 3

x, 4 x - 2 y + 9 z = x + 12 y - 42

\frac{4 x}{3} - \frac{2}{5} = \frac{7 x}{5} - \frac{1}{10}

y = 3^{- 4}

What is the answer to 80+x/3+2/7 (x/3)=x ?
The answer to 80+x/3+2/7 (x/3)=x is x=140
Solve for x: 80+x/3+2/7 (x/3)=x
The solution is x=140