Solve -5(1/2)+5(3)=

$$- 5 ( 1 / 2 ) + 5 ( 3 ) =$$

Evaluate

$$\frac{25}{2}=12.5$$

Solution Steps

Multiply -5 and \frac{1}{2} to get \frac{-5}{2}.

$$\frac{-5}{2}+5\times 3$$

Fraction \frac{-5}{2} can be rewritten as -\frac{5}{2} by extracting the negative sign.

$$-\frac{5}{2}+5\times 3$$

Multiply 5 and 3 to get 15.

$$-\frac{5}{2}+15$$

Convert 15 to fraction \frac{30}{2}.

$$-\frac{5}{2}+\frac{30}{2}$$

Since -\frac{5}{2} and \frac{30}{2} have the same denominator, add them by adding their numerators.

$$\frac{-5+30}{2}$$

Add -5 and 30 to get 25.

$$\frac{25}{2}$$

Factor

$$\frac{5 ^ {2}}{2} = 12\frac{1}{2} = 12.5$$