7(y-6)=21

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Solution for 7(y-6)=21 equation: 


Simplifying
7(y + -6) = 21

Reorder the terms:
7(-6 + y) = 21
(-6 * 7 + y * 7) = 21
(-42 + 7y) = 21

Solving
-42 + 7y = 21

Solving for variable 'y'.

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

Add '42' to each side of the equation.
-42 + 42 + 7y = 21 + 42

Combine like terms: -42 + 42 = 0
0 + 7y = 21 + 42
7y = 21 + 42

Combine like terms: 21 + 42 = 63
7y = 63

Divide each side by '7'.
y = 9

Simplifying
y = 9

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