-7-5(1+9k)=30

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Solution for -7-5(1+9k)=30 equation:


Simplifying
-7 + -5(1 + 9k) = 30
-7 + (1 * -5 + 9k * -5) = 30
-7 + (-5 + -45k) = 30

Combine like terms: -7 + -5 = -12
-12 + -45k = 30

Solving
-12 + -45k = 30

Solving for variable 'k'.

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

Add '12' to each side of the equation.
-12 + 12 + -45k = 30 + 12

Combine like terms: -12 + 12 = 0
0 + -45k = 30 + 12
-45k = 30 + 12

Combine like terms: 30 + 12 = 42
-45k = 42

Divide each side by '-45'.
k = -0.9333333333

Simplifying
k = -0.9333333333

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