3(4-5k)-5(7-2k)+6=3k+7

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Solution for 3(4-5k)-5(7-2k)+6=3k+7 equation:


Simplifying
3(4 + -5k) + -5(7 + -2k) + 6 = 3k + 7
(4 * 3 + -5k * 3) + -5(7 + -2k) + 6 = 3k + 7
(12 + -15k) + -5(7 + -2k) + 6 = 3k + 7
12 + -15k + (7 * -5 + -2k * -5) + 6 = 3k + 7
12 + -15k + (-35 + 10k) + 6 = 3k + 7

Reorder the terms:
12 + -35 + 6 + -15k + 10k = 3k + 7

Combine like terms: 12 + -35 = -23
-23 + 6 + -15k + 10k = 3k + 7

Combine like terms: -23 + 6 = -17
-17 + -15k + 10k = 3k + 7

Combine like terms: -15k + 10k = -5k
-17 + -5k = 3k + 7

Reorder the terms:
-17 + -5k = 7 + 3k

Solving
-17 + -5k = 7 + 3k

Solving for variable 'k'.

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

Add '-3k' to each side of the equation.
-17 + -5k + -3k = 7 + 3k + -3k

Combine like terms: -5k + -3k = -8k
-17 + -8k = 7 + 3k + -3k

Combine like terms: 3k + -3k = 0
-17 + -8k = 7 + 0
-17 + -8k = 7

Add '17' to each side of the equation.
-17 + 17 + -8k = 7 + 17

Combine like terms: -17 + 17 = 0
0 + -8k = 7 + 17
-8k = 7 + 17

Combine like terms: 7 + 17 = 24
-8k = 24

Divide each side by '-8'.
k = -3

Simplifying
k = -3

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