0.4x-0.7=6.5

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Solution for 0.4x-0.7=6.5 equation: 


Simplifying
0.4x + -0.7 = 6.5

Reorder the terms:
-0.7 + 0.4x = 6.5

Solving
-0.7 + 0.4x = 6.5

Solving for variable 'x'.

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

Add '0.7' to each side of the equation.
-0.7 + 0.7 + 0.4x = 6.5 + 0.7

Combine like terms: -0.7 + 0.7 = 0.0
0.0 + 0.4x = 6.5 + 0.7
0.4x = 6.5 + 0.7

Combine like terms: 6.5 + 0.7 = 7.2
0.4x = 7.2

Divide each side by '0.4'.
x = 18

Simplifying
x = 18

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