Basic Math Examples

$78 = - 2 m + 3 + m$

Step 1

Rewrite the equation as $- 2 m + 3 + m = 78$ .

$- 2 m + 3 + m = 78$

Step 2

Add $- 2 m$ and $m$ .

$- m + 3 = 78$

Step 3

Move all terms not containing $m$ to the right side of the equation.

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Step 3.1

Subtract $3$ from both sides of the equation.

$- m = 78 - 3$

Step 3.2

Subtract $3$ from $78$ .

$- m = 75$

Step 4

Divide each term in $- m = 75$ by $- 1$ and simplify.

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Step 4.1

Divide each term in $- m = 75$ by $- 1$ .

$\frac{- m}{- 1} = \frac{75}{- 1}$

Step 4.2

Simplify the left side.

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Step 4.2.1

Dividing two negative values results in a positive value.

$\frac{m}{1} = \frac{75}{- 1}$

Step 4.2.2

Divide $m$ by $1$ .

$m = \frac{75}{- 1}$

Step 4.3

Simplify the right side.

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Step 4.3.1

Divide $75$ by $- 1$ .

$m = - 75$