3.21=0.4*x+0.8*y+0.8*z

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Solution for 3.21=0.4*x+0.8*y+0.8*z equation: 


Simplifying
3.21 = 0.4x + 0.8y + 0.8z

Solving
3.21 = 0.4x + 0.8y + 0.8z

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.
3.21 + -0.4x = 0.4x + 0.8y + -0.4x + 0.8z

Reorder the terms:
3.21 + -0.4x = 0.4x + -0.4x + 0.8y + 0.8z

Combine like terms: 0.4x + -0.4x = 0.0
3.21 + -0.4x = 0.0 + 0.8y + 0.8z
3.21 + -0.4x = 0.8y + 0.8z

Add '-3.21' to each side of the equation.
3.21 + -3.21 + -0.4x = 0.8y + -3.21 + 0.8z

Combine like terms: 3.21 + -3.21 = 0.00
0.00 + -0.4x = 0.8y + -3.21 + 0.8z
-0.4x = 0.8y + -3.21 + 0.8z

Reorder the terms:
-0.4x = -3.21 + 0.8y + 0.8z

Divide each side by '-0.4'.
x = 8.025 + -2y + -2z

Simplifying
x = 8.025 + -2y + -2z

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