-84=7(1-2k)+7

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Solution for -84=7(1-2k)+7 equation:


Simplifying
-84 = 7(1 + -2k) + 7
-84 = (1 * 7 + -2k * 7) + 7
-84 = (7 + -14k) + 7

Reorder the terms:
-84 = 7 + 7 + -14k

Combine like terms: 7 + 7 = 14
-84 = 14 + -14k

Solving
-84 = 14 + -14k

Solving for variable 'k'.

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

Add '14k' to each side of the equation.
-84 + 14k = 14 + -14k + 14k

Combine like terms: -14k + 14k = 0
-84 + 14k = 14 + 0
-84 + 14k = 14

Add '84' to each side of the equation.
-84 + 84 + 14k = 14 + 84

Combine like terms: -84 + 84 = 0
0 + 14k = 14 + 84
14k = 14 + 84

Combine like terms: 14 + 84 = 98
14k = 98

Divide each side by '14'.
k = 7

Simplifying
k = 7

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