0.9x-0.3(3-x)=4.5

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Solution for 0.9x-0.3(3-x)=4.5 equation: 


Simplifying
0.9x + -0.3(3 + -1x) = 4.5
0.9x + (3 * -0.3 + -1x * -0.3) = 4.5
0.9x + (-0.9 + 0.3x) = 4.5

Reorder the terms:
-0.9 + 0.9x + 0.3x = 4.5

Combine like terms: 0.9x + 0.3x = 1.2x
-0.9 + 1.2x = 4.5

Solving
-0.9 + 1.2x = 4.5

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 + 1.2x = 4.5 + 0.9

Combine like terms: -0.9 + 0.9 = 0.0
0.0 + 1.2x = 4.5 + 0.9
1.2x = 4.5 + 0.9

Combine like terms: 4.5 + 0.9 = 5.4
1.2x = 5.4

Divide each side by '1.2'.
x = 4.5

Simplifying
x = 4.5

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