-3(3+5k)=-7(k-1)

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Solution for -3(3+5k)=-7(k-1) equation:


Simplifying
-3(3 + 5k) = -7(k + -1)
(3 * -3 + 5k * -3) = -7(k + -1)
(-9 + -15k) = -7(k + -1)

Reorder the terms:
-9 + -15k = -7(-1 + k)
-9 + -15k = (-1 * -7 + k * -7)
-9 + -15k = (7 + -7k)

Solving
-9 + -15k = 7 + -7k

Solving for variable 'k'.

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

Add '7k' to each side of the equation.
-9 + -15k + 7k = 7 + -7k + 7k

Combine like terms: -15k + 7k = -8k
-9 + -8k = 7 + -7k + 7k

Combine like terms: -7k + 7k = 0
-9 + -8k = 7 + 0
-9 + -8k = 7

Add '9' to each side of the equation.
-9 + 9 + -8k = 7 + 9

Combine like terms: -9 + 9 = 0
0 + -8k = 7 + 9
-8k = 7 + 9

Combine like terms: 7 + 9 = 16
-8k = 16

Divide each side by '-8'.
k = -2

Simplifying
k = -2

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