7(M-3)-5=20-2(M-13)

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Solution for 7(M-3)-5=20-2(M-13) equation:


Simplifying
7(M + -3) + -5 = 20 + -2(M + -13)

Reorder the terms:
7(-3 + M) + -5 = 20 + -2(M + -13)
(-3 * 7 + M * 7) + -5 = 20 + -2(M + -13)
(-21 + 7M) + -5 = 20 + -2(M + -13)

Reorder the terms:
-21 + -5 + 7M = 20 + -2(M + -13)

Combine like terms: -21 + -5 = -26
-26 + 7M = 20 + -2(M + -13)

Reorder the terms:
-26 + 7M = 20 + -2(-13 + M)
-26 + 7M = 20 + (-13 * -2 + M * -2)
-26 + 7M = 20 + (26 + -2M)

Combine like terms: 20 + 26 = 46
-26 + 7M = 46 + -2M

Solving
-26 + 7M = 46 + -2M

Solving for variable 'M'.

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

Add '2M' to each side of the equation.
-26 + 7M + 2M = 46 + -2M + 2M

Combine like terms: 7M + 2M = 9M
-26 + 9M = 46 + -2M + 2M

Combine like terms: -2M + 2M = 0
-26 + 9M = 46 + 0
-26 + 9M = 46

Add '26' to each side of the equation.
-26 + 26 + 9M = 46 + 26

Combine like terms: -26 + 26 = 0
0 + 9M = 46 + 26
9M = 46 + 26

Combine like terms: 46 + 26 = 72
9M = 72

Divide each side by '9'.
M = 8

Simplifying
M = 8

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