0.004(7-k)+0.08(k-3)=1

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Solution for 0.004(7-k)+0.08(k-3)=1 equation: 


Simplifying
0.004(7 + -1k) + 0.08(k + -3) = 1
(7 * 0.004 + -1k * 0.004) + 0.08(k + -3) = 1
(0.028 + -0.004k) + 0.08(k + -3) = 1

Reorder the terms:
0.028 + -0.004k + 0.08(-3 + k) = 1
0.028 + -0.004k + (-3 * 0.08 + k * 0.08) = 1
0.028 + -0.004k + (-0.24 + 0.08k) = 1

Reorder the terms:
0.028 + -0.24 + -0.004k + 0.08k = 1

Combine like terms: 0.028 + -0.24 = -0.212
-0.212 + -0.004k + 0.08k = 1

Combine like terms: -0.004k + 0.08k = 0.076k
-0.212 + 0.076k = 1

Solving
-0.212 + 0.076k = 1

Solving for variable 'k'.

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

Add '0.212' to each side of the equation.
-0.212 + 0.212 + 0.076k = 1 + 0.212

Combine like terms: -0.212 + 0.212 = 0.000
0.000 + 0.076k = 1 + 0.212
0.076k = 1 + 0.212

Combine like terms: 1 + 0.212 = 1.212
0.076k = 1.212

Divide each side by '0.076'.
k = 15.94736842

Simplifying
k = 15.94736842

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