4.5+8.5(1-4k)=-25.5

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Solution for 4.5+8.5(1-4k)=-25.5 equation: 


Simplifying
4.5 + 8.5(1 + -4k) = -25.5
4.5 + (1 * 8.5 + -4k * 8.5) = -25.5
4.5 + (8.5 + -34k) = -25.5

Combine like terms: 4.5 + 8.5 = 13
13 + -34k = -25.5

Solving
13 + -34k = -25.5

Solving for variable 'k'.

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

Add '-13' to each side of the equation.
13 + -13 + -34k = -25.5 + -13

Combine like terms: 13 + -13 = 0
0 + -34k = -25.5 + -13
-34k = -25.5 + -13

Combine like terms: -25.5 + -13 = -38.5
-34k = -38.5

Divide each side by '-34'.
k = 1.132352941

Simplifying
k = 1.132352941

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