3(7-m)=4(2-m)

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Solution for 3(7-m)=4(2-m) equation:


Simplifying
3(7 + -1m) = 4(2 + -1m)
(7 * 3 + -1m * 3) = 4(2 + -1m)
(21 + -3m) = 4(2 + -1m)
21 + -3m = (2 * 4 + -1m * 4)
21 + -3m = (8 + -4m)

Solving
21 + -3m = 8 + -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.
21 + -3m + 4m = 8 + -4m + 4m

Combine like terms: -3m + 4m = 1m
21 + 1m = 8 + -4m + 4m

Combine like terms: -4m + 4m = 0
21 + 1m = 8 + 0
21 + 1m = 8

Add '-21' to each side of the equation.
21 + -21 + 1m = 8 + -21

Combine like terms: 21 + -21 = 0
0 + 1m = 8 + -21
1m = 8 + -21

Combine like terms: 8 + -21 = -13
1m = -13

Divide each side by '1'.
m = -13

Simplifying
m = -13

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