0.2+0.3+0.4+0.5+0.6+0.7=x

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Solution for 0.2+0.3+0.4+0.5+0.6+0.7=x equation: 


Simplifying
0.2 + 0.3 + 0.4 + 0.5 + 0.6 + 0.7 = x

Combine like terms: 0.2 + 0.3 = 0.5
0.5 + 0.4 + 0.5 + 0.6 + 0.7 = x

Combine like terms: 0.5 + 0.4 = 0.9
0.9 + 0.5 + 0.6 + 0.7 = x

Combine like terms: 0.9 + 0.5 = 1.4
1.4 + 0.6 + 0.7 = x

Combine like terms: 1.4 + 0.6 = 2
2 + 0.7 = x

Combine like terms: 2 + 0.7 = 2.7
2.7 = x

Solving
2.7 = x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
2.7 + -1x = x + -1x

Combine like terms: x + -1x = 0
2.7 + -1x = 0

Add '-2.7' to each side of the equation.
2.7 + -2.7 + -1x = 0 + -2.7

Combine like terms: 2.7 + -2.7 = 0.0
0.0 + -1x = 0 + -2.7
-1x = 0 + -2.7

Combine like terms: 0 + -2.7 = -2.7
-1x = -2.7

Divide each side by '-1'.
x = 2.7

Simplifying
x = 2.7

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