7m+1-3=21

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Solution for 7m+1-3=21 equation:


Simplifying
7m + 1 + -3 = 21

Reorder the terms:
1 + -3 + 7m = 21

Combine like terms: 1 + -3 = -2
-2 + 7m = 21

Solving
-2 + 7m = 21

Solving for variable 'm'.

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

Add '2' to each side of the equation.
-2 + 2 + 7m = 21 + 2

Combine like terms: -2 + 2 = 0
0 + 7m = 21 + 2
7m = 21 + 2

Combine like terms: 21 + 2 = 23
7m = 23

Divide each side by '7'.
m = 3.285714286

Simplifying
m = 3.285714286

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