3m-7=2m-9

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Solution for 3m-7=2m-9 equation:


Simplifying
3m + -7 = 2m + -9

Reorder the terms:
-7 + 3m = 2m + -9

Reorder the terms:
-7 + 3m = -9 + 2m

Solving
-7 + 3m = -9 + 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.
-7 + 3m + -2m = -9 + 2m + -2m

Combine like terms: 3m + -2m = 1m
-7 + 1m = -9 + 2m + -2m

Combine like terms: 2m + -2m = 0
-7 + 1m = -9 + 0
-7 + 1m = -9

Add '7' to each side of the equation.
-7 + 7 + 1m = -9 + 7

Combine like terms: -7 + 7 = 0
0 + 1m = -9 + 7
1m = -9 + 7

Combine like terms: -9 + 7 = -2
1m = -2

Divide each side by '1'.
m = -2

Simplifying
m = -2

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