j+2+7=12

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Solution for j+2+7=12 equation: 


Simplifying
j + 2 + 7 = 12

Reorder the terms:
2 + 7 + j = 12

Combine like terms: 2 + 7 = 9
9 + j = 12

Solving
9 + j = 12

Solving for variable 'j'.

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

Add '-9' to each side of the equation.
9 + -9 + j = 12 + -9

Combine like terms: 9 + -9 = 0
0 + j = 12 + -9
j = 12 + -9

Combine like terms: 12 + -9 = 3
j = 3

Simplifying
j = 3

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