3.5=6.7-0.4x

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Solution for 3.5=6.7-0.4x equation: 


Simplifying
3.5 = 6.7 + -0.4x

Solving
3.5 = 6.7 + -0.4x

Solving for variable 'x'.

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

Add '0.4x' to each side of the equation.
3.5 + 0.4x = 6.7 + -0.4x + 0.4x

Combine like terms: -0.4x + 0.4x = 0.0
3.5 + 0.4x = 6.7 + 0.0
3.5 + 0.4x = 6.7

Add '-3.5' to each side of the equation.
3.5 + -3.5 + 0.4x = 6.7 + -3.5

Combine like terms: 3.5 + -3.5 = 0.0
0.0 + 0.4x = 6.7 + -3.5
0.4x = 6.7 + -3.5

Combine like terms: 6.7 + -3.5 = 3.2
0.4x = 3.2

Divide each side by '0.4'.
x = 8

Simplifying
x = 8

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