What is the answer to x+x+13.7=142.9 ?

The answer to x+x+13.7=142.9 is x=64.6

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x+x+13.7=142.9

x + x + 13.7 = 142.9

x = 64.6

Solution steps

x + x + 13.7 = 142.9

Add similar elements:

x + x = 2 x

2 x + 13.7 = 142.9

Move

13.7

to the right side

2 x = 129.2

Divide both sides by

2

x = 64.6

6 \cdot {3 \cdot [- 9 + 4 (5 \cdot 3 - 9)] - 3 \cdot (40 - 8)}

9 + v = - 7

6 = x 3

- 9 y = - 9

(4 x - 1)^{2} = 43