8k+4=9k-7

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Solution for 8k+4=9k-7 equation:


Simplifying
8k + 4 = 9k + -7

Reorder the terms:
4 + 8k = 9k + -7

Reorder the terms:
4 + 8k = -7 + 9k

Solving
4 + 8k = -7 + 9k

Solving for variable 'k'.

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

Add '-9k' to each side of the equation.
4 + 8k + -9k = -7 + 9k + -9k

Combine like terms: 8k + -9k = -1k
4 + -1k = -7 + 9k + -9k

Combine like terms: 9k + -9k = 0
4 + -1k = -7 + 0
4 + -1k = -7

Add '-4' to each side of the equation.
4 + -4 + -1k = -7 + -4

Combine like terms: 4 + -4 = 0
0 + -1k = -7 + -4
-1k = -7 + -4

Combine like terms: -7 + -4 = -11
-1k = -11

Divide each side by '-1'.
k = 11

Simplifying
k = 11

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