2.1=6.6-0.5x

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Solution for 2.1=6.6-0.5x equation:


Simplifying
2.1 = 6.6 + -0.5x

Solving
2.1 = 6.6 + -0.5x

Solving for variable 'x'.

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

Add '0.5x' to each side of the equation.
2.1 + 0.5x = 6.6 + -0.5x + 0.5x

Combine like terms: -0.5x + 0.5x = 0.0
2.1 + 0.5x = 6.6 + 0.0
2.1 + 0.5x = 6.6

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 0.5x = 6.6 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 0.5x = 6.6 + -2.1
0.5x = 6.6 + -2.1

Combine like terms: 6.6 + -2.1 = 4.5
0.5x = 4.5

Divide each side by '0.5'.
x = 9

Simplifying
x = 9

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