2(m-21)+4(m-4)=38

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Solution for 2(m-21)+4(m-4)=38 equation:


Simplifying
2(m + -21) + 4(m + -4) = 38

Reorder the terms:
2(-21 + m) + 4(m + -4) = 38
(-21 * 2 + m * 2) + 4(m + -4) = 38
(-42 + 2m) + 4(m + -4) = 38

Reorder the terms:
-42 + 2m + 4(-4 + m) = 38
-42 + 2m + (-4 * 4 + m * 4) = 38
-42 + 2m + (-16 + 4m) = 38

Reorder the terms:
-42 + -16 + 2m + 4m = 38

Combine like terms: -42 + -16 = -58
-58 + 2m + 4m = 38

Combine like terms: 2m + 4m = 6m
-58 + 6m = 38

Solving
-58 + 6m = 38

Solving for variable 'm'.

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

Add '58' to each side of the equation.
-58 + 58 + 6m = 38 + 58

Combine like terms: -58 + 58 = 0
0 + 6m = 38 + 58
6m = 38 + 58

Combine like terms: 38 + 58 = 96
6m = 96

Divide each side by '6'.
m = 16

Simplifying
m = 16

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