13-(3M+3)=4+4M-15

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Solution for 13-(3M+3)=4+4M-15 equation: 


Simplifying
13 + -1(3M + 3) = 4 + 4M + -15

Reorder the terms:
13 + -1(3 + 3M) = 4 + 4M + -15
13 + (3 * -1 + 3M * -1) = 4 + 4M + -15
13 + (-3 + -3M) = 4 + 4M + -15

Combine like terms: 13 + -3 = 10
10 + -3M = 4 + 4M + -15

Reorder the terms:
10 + -3M = 4 + -15 + 4M

Combine like terms: 4 + -15 = -11
10 + -3M = -11 + 4M

Solving
10 + -3M = -11 + 4M

Solving for variable 'M'.

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

Add '-4M' to each side of the equation.
10 + -3M + -4M = -11 + 4M + -4M

Combine like terms: -3M + -4M = -7M
10 + -7M = -11 + 4M + -4M

Combine like terms: 4M + -4M = 0
10 + -7M = -11 + 0
10 + -7M = -11

Add '-10' to each side of the equation.
10 + -10 + -7M = -11 + -10

Combine like terms: 10 + -10 = 0
0 + -7M = -11 + -10
-7M = -11 + -10

Combine like terms: -11 + -10 = -21
-7M = -21

Divide each side by '-7'.
M = 3

Simplifying
M = 3

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