0.2(x+56)+0.7x=21

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Solution for 0.2(x+56)+0.7x=21 equation: 


Simplifying
0.2(x + 56) + 0.7x = 21

Reorder the terms:
0.2(56 + x) + 0.7x = 21
(56 * 0.2 + x * 0.2) + 0.7x = 21
(11.2 + 0.2x) + 0.7x = 21

Combine like terms: 0.2x + 0.7x = 0.9x
11.2 + 0.9x = 21

Solving
11.2 + 0.9x = 21

Solving for variable 'x'.

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

Add '-11.2' to each side of the equation.
11.2 + -11.2 + 0.9x = 21 + -11.2

Combine like terms: 11.2 + -11.2 = 0.0
0.0 + 0.9x = 21 + -11.2
0.9x = 21 + -11.2

Combine like terms: 21 + -11.2 = 9.8
0.9x = 9.8

Divide each side by '0.9'.
x = 10.88888889

Simplifying
x = 10.88888889

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