0.5x-0.3(5-x)=2.1

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Solution for 0.5x-0.3(5-x)=2.1 equation: 


Simplifying
0.5x + -0.3(5 + -1x) = 2.1
0.5x + (5 * -0.3 + -1x * -0.3) = 2.1
0.5x + (-1.5 + 0.3x) = 2.1

Reorder the terms:
-1.5 + 0.5x + 0.3x = 2.1

Combine like terms: 0.5x + 0.3x = 0.8x
-1.5 + 0.8x = 2.1

Solving
-1.5 + 0.8x = 2.1

Solving for variable 'x'.

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

Add '1.5' to each side of the equation.
-1.5 + 1.5 + 0.8x = 2.1 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
0.0 + 0.8x = 2.1 + 1.5
0.8x = 2.1 + 1.5

Combine like terms: 2.1 + 1.5 = 3.6
0.8x = 3.6

Divide each side by '0.8'.
x = 4.5

Simplifying
x = 4.5

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