0.7x+0.3(3-x)=3

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Solution for 0.7x+0.3(3-x)=3 equation: 


Simplifying
0.7x + 0.3(3 + -1x) = 3
0.7x + (3 * 0.3 + -1x * 0.3) = 3
0.7x + (0.9 + -0.3x) = 3

Reorder the terms:
0.9 + 0.7x + -0.3x = 3

Combine like terms: 0.7x + -0.3x = 0.4x
0.9 + 0.4x = 3

Solving
0.9 + 0.4x = 3

Solving for variable 'x'.

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

Add '-0.9' to each side of the equation.
0.9 + -0.9 + 0.4x = 3 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + 0.4x = 3 + -0.9
0.4x = 3 + -0.9

Combine like terms: 3 + -0.9 = 2.1
0.4x = 2.1

Divide each side by '0.4'.
x = 5.25

Simplifying
x = 5.25

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