3(M-5)+4=M-7

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Solution for 3(M-5)+4=M-7 equation: 


Simplifying
3(M + -5) + 4 = M + -7

Reorder the terms:
3(-5 + M) + 4 = M + -7
(-5 * 3 + M * 3) + 4 = M + -7
(-15 + 3M) + 4 = M + -7

Reorder the terms:
-15 + 4 + 3M = M + -7

Combine like terms: -15 + 4 = -11
-11 + 3M = M + -7

Reorder the terms:
-11 + 3M = -7 + M

Solving
-11 + 3M = -7 + M

Solving for variable 'M'.

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

Add '-1M' to each side of the equation.
-11 + 3M + -1M = -7 + M + -1M

Combine like terms: 3M + -1M = 2M
-11 + 2M = -7 + M + -1M

Combine like terms: M + -1M = 0
-11 + 2M = -7 + 0
-11 + 2M = -7

Add '11' to each side of the equation.
-11 + 11 + 2M = -7 + 11

Combine like terms: -11 + 11 = 0
0 + 2M = -7 + 11
2M = -7 + 11

Combine like terms: -7 + 11 = 4
2M = 4

Divide each side by '2'.
M = 2

Simplifying
M = 2

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