7=(-2)2-3(-2)+2K

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Solution for 7=(-2)2-3(-2)+2K equation: 


Simplifying
7 = (-2) * 2 + -3(-2) + 2K

Multiply -2 * 2
7 = -4 + -3(-2) + 2K

Multiply -3 * -2
7 = -4 + 6 + 2K

Combine like terms: -4 + 6 = 2
7 = 2 + 2K

Solving
7 = 2 + 2K

Solving for variable 'K'.

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

Add '-2K' to each side of the equation.
7 + -2K = 2 + 2K + -2K

Combine like terms: 2K + -2K = 0
7 + -2K = 2 + 0
7 + -2K = 2

Add '-7' to each side of the equation.
7 + -7 + -2K = 2 + -7

Combine like terms: 7 + -7 = 0
0 + -2K = 2 + -7
-2K = 2 + -7

Combine like terms: 2 + -7 = -5
-2K = -5

Divide each side by '-2'.
K = 2.5

Simplifying
K = 2.5

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