Solve 12+3-15\div(-2-1)+30-64\div8-2+10-72\div(-8)

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Question

$$12+3-15 \div (-2-1)+30-64 \div 8-2+10-72 \div (-8)$$

Evaluate

$59$

Solution Steps

Add $12$ and $3$ to get $15$.

$$15-\frac{15}{-2-1}+30-\frac{64}{8}-2+10-\frac{72}{-8}$$

Subtract $1$ from $-2$ to get $-3$.

$$15-\frac{15}{-3}+30-\frac{64}{8}-2+10-\frac{72}{-8}$$

Divide $15$ by $-3$ to get $-5$.

$$15-\left(-5\right)+30-\frac{64}{8}-2+10-\frac{72}{-8}$$

The opposite of $-5$ is $5$.

$$15+5+30-\frac{64}{8}-2+10-\frac{72}{-8}$$

Add $15$ and $5$ to get $20$.

$$20+30-\frac{64}{8}-2+10-\frac{72}{-8}$$

Add $20$ and $30$ to get $50$.

$$50-\frac{64}{8}-2+10-\frac{72}{-8}$$

Divide $64$ by $8$ to get $8$.

$$50-8-2+10-\frac{72}{-8}$$

Subtract $8$ from $50$ to get $42$.

$$42-2+10-\frac{72}{-8}$$

Subtract $2$ from $42$ to get $40$.

$$40+10-\frac{72}{-8}$$

Add $40$ and $10$ to get $50$.

$$50-\frac{72}{-8}$$

Divide $72$ by $-8$ to get $-9$.

$$50-\left(-9\right)$$

The opposite of $-9$ is $9$.

$$50+9$$

Add $50$ and $9$ to get $59$.

$$59$$

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