3.5+2(1-7.5k)=17.5

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Solution for 3.5+2(1-7.5k)=17.5 equation: 


Simplifying
3.5 + 2(1 + -7.5k) = 17.5
3.5 + (1 * 2 + -7.5k * 2) = 17.5
3.5 + (2 + -15k) = 17.5

Combine like terms: 3.5 + 2 = 5.5
5.5 + -15k = 17.5

Solving
5.5 + -15k = 17.5

Solving for variable 'k'.

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

Add '-5.5' to each side of the equation.
5.5 + -5.5 + -15k = 17.5 + -5.5

Combine like terms: 5.5 + -5.5 = 0.0
0.0 + -15k = 17.5 + -5.5
-15k = 17.5 + -5.5

Combine like terms: 17.5 + -5.5 = 12
-15k = 12

Divide each side by '-15'.
k = -0.8

Simplifying
k = -0.8

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