6.7=9.9-0.8x

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Solution for 6.7=9.9-0.8x equation:


Simplifying
6.7 = 9.9 + -0.8x

Solving
6.7 = 9.9 + -0.8x

Solving for variable 'x'.

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

Add '0.8x' to each side of the equation.
6.7 + 0.8x = 9.9 + -0.8x + 0.8x

Combine like terms: -0.8x + 0.8x = 0.0
6.7 + 0.8x = 9.9 + 0.0
6.7 + 0.8x = 9.9

Add '-6.7' to each side of the equation.
6.7 + -6.7 + 0.8x = 9.9 + -6.7

Combine like terms: 6.7 + -6.7 = 0.0
0.0 + 0.8x = 9.9 + -6.7
0.8x = 9.9 + -6.7

Combine like terms: 9.9 + -6.7 = 3.2
0.8x = 3.2

Divide each side by '0.8'.
x = 4

Simplifying
x = 4

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