Question

Difficulty: EasySolving One-Variable Linear Equations

If 5m+12=2m+275m + 12 = 2m + 27, what is the value of mm?

Answer: 5

Answer

The correct value of the variable is 5.
By using inverse operations to collect the variable terms on one side and the constant terms on the other, the equation simplifies to 3m=153m = 15, which directly yields a result of 55.

Step-by-Step Solution

1
Move all terms containing the variable to one side of the equation.
3m+12=273m + 12 = 27
Subtracting 2m2m from both sides eliminates the variable from the right side and groups it on the left.
2
Move all constant terms to the opposite side of the equation.
3m=153m = 15
Subtracting 1212 from both sides isolates the term containing the variable.
3
Solve for the variable.
m=5m = 5
Dividing both sides by the coefficient 33 provides the final value of mm.

Key Concept

Solving Linear Equations with Variables on Both Sides
Estimated Time:45s
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