51-w=7*3

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Solution for 51-w=7*3 equation: 


Simplifying
51 + -1w = 7 * 3

Multiply 7 * 3
51 + -1w = 21

Solving
51 + -1w = 21

Solving for variable 'w'.

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

Add '-51' to each side of the equation.
51 + -51 + -1w = 21 + -51

Combine like terms: 51 + -51 = 0
0 + -1w = 21 + -51
-1w = 21 + -51

Combine like terms: 21 + -51 = -30
-1w = -30

Divide each side by '-1'.
w = 30

Simplifying
w = 30

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