-6(M+1)=21

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Solution for -6(M+1)=21 equation: 


Simplifying
-6(M + 1) = 21

Reorder the terms:
-6(1 + M) = 21
(1 * -6 + M * -6) = 21
(-6 + -6M) = 21

Solving
-6 + -6M = 21

Solving for variable 'M'.

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

Add '6' to each side of the equation.
-6 + 6 + -6M = 21 + 6

Combine like terms: -6 + 6 = 0
0 + -6M = 21 + 6
-6M = 21 + 6

Combine like terms: 21 + 6 = 27
-6M = 27

Divide each side by '-6'.
M = -4.5

Simplifying
M = -4.5

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