What is the answer to x+2x=100 ?

The answer to x+2x=100 is x= 100/3

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x+2x=100

x + 2 x = 100

x = \frac{100}{3}

Decimal Notation

x = 33.33333 \dots

Solution steps

x + 2 x = 100

Add similar elements:

x + 2 x = 3 x

3 x = 100

Divide both sides by

3

x = \frac{100}{3}

2 (3 x - 1) = 3 (x - 1)

\frac{3 x + 2}{4} = 1

5 (x - 3) 2 + 4 = 129

\frac{4 x - 8}{2} = 16

12 x - 4 = 3 x + 9