-3(2+4k)+7(2k-1)=

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Solution for -3(2+4k)+7(2k-1)= equation:


Simplifying
-3(2 + 4k) + 7(2k + -1) = 0
(2 * -3 + 4k * -3) + 7(2k + -1) = 0
(-6 + -12k) + 7(2k + -1) = 0

Reorder the terms:
-6 + -12k + 7(-1 + 2k) = 0
-6 + -12k + (-1 * 7 + 2k * 7) = 0
-6 + -12k + (-7 + 14k) = 0

Reorder the terms:
-6 + -7 + -12k + 14k = 0

Combine like terms: -6 + -7 = -13
-13 + -12k + 14k = 0

Combine like terms: -12k + 14k = 2k
-13 + 2k = 0

Solving
-13 + 2k = 0

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 + 2k = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 2k = 0 + 13
2k = 0 + 13

Combine like terms: 0 + 13 = 13
2k = 13

Divide each side by '2'.
k = 6.5

Simplifying
k = 6.5

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