4(0.85+x)=6.40

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Solution for 4(0.85+x)=6.40 equation: 


Simplifying
4(0.85 + x) = 6.40
(0.85 * 4 + x * 4) = 6.40
(3.4 + 4x) = 6.40

Solving
3.4 + 4x = 6.40

Solving for variable 'x'.

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

Add '-3.4' to each side of the equation.
3.4 + -3.4 + 4x = 6.40 + -3.4

Combine like terms: 3.4 + -3.4 = 0.0
0.0 + 4x = 6.40 + -3.4
4x = 6.40 + -3.4

Combine like terms: 6.40 + -3.4 = 3
4x = 3

Divide each side by '4'.
x = 0.75

Simplifying
x = 0.75

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